Bump minimal requirements to Java 17

[melix]

This commit upgrades the plugin to build with Java 17, but also require everything to use Java 17 minimally: this is preparation work for supporting Micronaut 4 which will raise the minimal JDK version to 17.

This doesn't upgrade transitive plugins like the Docker plugin yet.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
3 Code Smells

33.3% Coverage
0.0% Duplication

[melix]

I'm not sure what defines the build(11) and build(8) workflows as mandatory, obviously this PR removes them.

[alvarosanchez]

Isn't it too early for this change? If you plan to make future releases from a 3.5.x maintenance branch, be aware that we mostly release from master. Doing a release from a different branch may or may not work :)

I'm not sure what defines the build(11) and build(8) workflows as mandatory, obviously this PR removes them.

That is defined here: https://github.com/micronaut-projects/management/blob/master/repositories.tf#L112

[melix]

Isn't it too early for this change? If you plan to make future releases from a 3.5.x maintenance branch, be aware that we mostly release from master. Doing a release from a different branch may or may not work :)

Yes this is intentional, so that we have master ready for Micronaut 4.0, while we have a 3.6.x maintenance branch (there will likely be a 3.6.0 release for the CrAC feature). I have already done some releases from other branches and they worked so 🤞

[melix]

That is defined here: https://github.com/micronaut-projects/management/blob/master/repositories.tf#L112

I guess we can merge as is for now, this is going to be changed globally for Micronaut 4.