…ig-builders from config files (nicolas-grekas)This PR was merged into the 7.4 branch.Discussion----------[DependencyInjection] Handle returning arrays and config-builders from config files| Q             | A| ------------- | ---| Branch?       | 7.4| Bug fix?      | no| New feature?  | yes| Deprecations? | no| Issues        | -| License       | MITAnother step on the path explored in#58771This allows returning PHP arrays or config-builders from config files.Several styles are supported, some examples below.What this does *not* support is config trees under the `import`, `parameters` or `services` namespaces (that's for another PR).Arrays:```phpreturn [    'framework' => [...],];``````phpreturn static function () {    yield 'framework' => [...];];```Config builders (best DX together with#61879):```phpreturn new FrameworkConfig([...]);``````phpreturn static function () {    return new FrameworkConfig([...]);];``````php// $env is always available in config filesif ('dev' === $env) {    return new FrameworkConfig([...]);}``````phpreturn static function (string $env) {    if ('dev' === $env) {        yield new FrameworkConfig([...]);    }};```Commits-------ff3fbd7 [DependencyInjection] Handle returning arrays and config-builders from config files