Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from1.72.1 to 1.73.0.<details><summary>Release notes</summary><p><em>Sourced from <ahref="https://github.com/grpc/grpc-go/releases">google.golang.org/grpc'sreleases</a>.</em></p><blockquote><h2>Release 1.73.0</h2><h1>New Features</h1><ul><li>balancer/ringhash: move LB policy from xds/internal to exported pathto facilitate use without xds (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8249">#8249</a>)</li><li>xds: enable least request LB policy by default. It can be disabledby setting <code>GRPC_EXPERIMENTAL_ENABLE_LEAST_REQUEST=false</code> inyour environment. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8253">#8253</a>)</li><li>grpc: add a <code>CallAuthority</code> Call Option that can be usedto overwrite the http <code>:authority</code> header on per-RPC basis.(<ahref="https://redirect.github.com/grpc/grpc-go/issues/8068">#8068</a>)</li><li>stats/opentelemetry: add trace event for name resolution delay. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8074">#8074</a>)</li><li>health: added <code>List</code> method to gRPC Health service. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8155">#8155</a>)<ul><li>Special Thanks: <ahref="https://github.com/marcoshuck"><code>@​marcoshuck</code></a></li></ul></li><li>ringhash: implement features from gRFC A76. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8159">#8159</a>)</li><li>xds: add functionality to support SPIFFE Bundle Maps as roots oftrust in XDS which can be enabled by setting<code>GRPC_EXPERIMENTAL_XDS_MTLS_SPIFFE=true</code>. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8167">#8167</a>,<ahref="https://redirect.github.com/grpc/grpc-go/issues/8180">#8180</a>,<ahref="https://redirect.github.com/grpc/grpc-go/issues/8229">#8229</a>,<ahref="https://redirect.github.com/grpc/grpc-go/issues/8343">#8343</a>)</li></ul><h1>Bug Fixes</h1><ul><li>xds: locality ID metric label is changed to make it consistent with<ahref="https://github.com/grpc/proposal/blob/master/A78-grpc-metrics-wrr-pf-xds.md#optional-xds-locality-label">gRFCA78</a>. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8256">#8256</a>)</li><li>client: fail RPCs on the client when using extremely short contextsthat expire before the <code>grpc-timeout</code> header is created. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8312">#8312</a>)</li><li>server: non-positive <code>grpc-timeout</code> header values are nowrejected. This is consistent with the <ahref="https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests">gRPCprotocol spec</a>. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8290">#8290</a>)<ul><li>Special Thanks: <ahref="https://github.com/evanj"><code>@​evanj</code></a></li></ul></li><li>xds: fix reported error string when LRS load reporting interval isinvalid. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8224">#8224</a>)<ul><li>Special Thanks: <ahref="https://github.com/alingse"><code>@​alingse</code></a></li></ul></li></ul><h1>Performance Improvements</h1><ul><li>credentials/alts: improve read performance by optimizing buffercopies and allocations. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8271">#8271</a>)</li><li>server: improve performance of RPC handling by avoid a status protocopy (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8282">#8282</a>)<ul><li>Special Thanks: <ahref="https://github.com/evanj"><code>@​evanj</code></a></li></ul></li></ul><h1>Documentation</h1><ul><li>examples/features/opentelemetry: modify example to demonstratetracing using OpenTelemtry plugin. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8056">#8056</a>)</li></ul><h2>Release 1.72.2</h2><h1>Bug Fixes</h1><ul><li>client: restore support for <code>NO_PROXY</code> environmentvariable when connecting to locally-resolved addresses (case 2 from <ahref="https://github.com/grpc/proposal/blob/master/A1-http-connect-proxy-support.md">gRFCA1</a>). (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8329">#8329</a>)</li><li>balancer/least_request: fix panic on resolver errors. (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8333">#8333</a>)</li></ul></blockquote></details><details><summary>Commits</summary><ul><li><ahref="https://github.com/grpc/grpc-go/commit/c52d02553f2649c28d0279bca17909a3a08de022"><code>c52d025</code></a>Change version to 1.73.0 (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8322">#8322</a>)</li><li><ahref="https://github.com/grpc/grpc-go/commit/ac60db1864c340dee6e5718fad7dee439775766e"><code>ac60db1</code></a>Add flag guarding SPIFFE Bundle provider (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8343">#8343</a>)(<ahref="https://redirect.github.com/grpc/grpc-go/issues/8382">#8382</a>)</li><li><ahref="https://github.com/grpc/grpc-go/commit/183c148c4e63b5770c8b9bdfc7d38fc0811e2742"><code>183c148</code></a>balancer/ringhash: Add experimental notice in package comment (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8364">#8364</a>)(<ahref="https://redirect.github.com/grpc/grpc-go/issues/8365">#8365</a>)</li><li><ahref="https://github.com/grpc/grpc-go/commit/b610465ce4bd1af616bad0389185276fb8d19bb8"><code>b610465</code></a>delegatingresolver: avoid proxy for resolved addresses in NO_PROXY env(<ahref="https://redirect.github.com/grpc/grpc-go/issues/8329">#8329</a>...</li><li><ahref="https://github.com/grpc/grpc-go/commit/96c4308a9958ccd2bcaffffd53d8fa6c380058b7"><code>96c4308</code></a>balancer/least_request : Fix panic while handling resolver errors (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8333">#8333</a>)(<ahref="https://redirect.github.com/grpc/grpc-go/issues/8">#8</a>...</li><li><ahref="https://github.com/grpc/grpc-go/commit/af5146b69698317950518c934e9eb14341df6858"><code>af5146b</code></a>grpc: update contributing.md (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8318">#8318</a>)</li><li><ahref="https://github.com/grpc/grpc-go/commit/09166b665e8b6442bc70e88cdef580da9e7b7b06"><code>09166b6</code></a>cleanup: remove unused constants in generic xdsclient (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8315">#8315</a>)</li><li><ahref="https://github.com/grpc/grpc-go/commit/e3f13e75a60a13287fc537cb7974680f1eb99dc7"><code>e3f13e7</code></a>transport: Prevent sending negative timeouts (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8312">#8312</a>)</li><li><ahref="https://github.com/grpc/grpc-go/commit/b89909b7bd0d9bd333aab291e90fec1fa8d45ce9"><code>b89909b</code></a>leakcheck: Fix flaky test TestCheck (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8309">#8309</a>)</li><li><ahref="https://github.com/grpc/grpc-go/commit/709023de87a25ae63b000139295af10589edffee"><code>709023d</code></a>grpcsync/event: Simplify synchronization (<ahref="https://redirect.github.com/grpc/grpc-go/issues/8308">#8308</a>)</li><li>Additional commits viewable in <ahref="https://github.com/grpc/grpc-go/compare/v1.72.1...v1.73.0">compareview</a></li></ul></details><br />[![Dependabot compatibilityscore](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=google.golang.org/grpc&package-manager=go_modules&previous-version=1.72.1&new-version=1.73.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)Dependabot will resolve any conflicts with this PR as long as you don'talter it yourself. 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