Publish Gradle plugin on MavenCentral too

[hfhbd]

AFAIK the Gradle plugin still uses JCenter hosted by bintray, which has some availability problems. Publishing the gradle plugin on MavenCentral would add another fallback (with higher availabilty).

[mpeddada1]

@hfhbd thanks for raising this. Perhaps this will provide a bit more background info on how the Jib gradle plugin is intended to be used: https://github.com/GoogleContainerTools/jib/issues/3719#issuecomment-1203109125.

[hfhbd]

I do know how to use the plugin. I would just publish the plugin on mavenCentral as fallback too instead relying only on the gradle portal servers.

[mpeddada1]

The idea of increasing the availability of the plugin seems valid. We don't have current plans on adding maven central yet but will keep this issue open. Additionally, we are aware that there were some concerns with JCenter and Bintray being shutdown, which were addressed in https://github.com/GoogleContainerTools/jib/issues/3170.