Update bundled maven to 3.10

[mbien]

draft until maven 3.10 is released

• https://cwiki.apache.org/confluence/spaces/MAVEN/pages/406622132/Maven+3.10.x
• https://github.com/apache/maven/milestone/130

todo:

• investigate MavenReloadImplementationTest#testUnresolvableArtifactAppears failure
• investigate why local repo indexing is now significantly slower
• paperwork will fail. will update the version occurrences once the jar versions are finalized
• bonus: get rid of more deprecations