Problem statement

Dispatch is usingscala-xml1.2.0.

In the meantime, a version 2 was published. Other libraries have updated their dependency, leading to conflict when we want to update them:

[error] * org.scala-lang.modules:scala-xml_2.13:2.1.0 (early-semver) is selected over 1.2.0[error]    +- XXXXX               (depends on 2.1.0)[error]    +- org.dispatchhttp:dispatch-core_2.13:1.2.0          (depends on 1.2.0)

Proposed solution
Update scala-xml to version2.1.0

I can open a PR if that helps.
I don't know if this project is still alive, and if a new version will be released with this change.