Co-authored-by: MD <1917406+mdcfe@users.noreply.github.com>
* Bumped Gradle to 7.0.2
* Now uses Java 16 for compiling to prepare for MC 1.17
* Release target is still set to 8 however
* Bumped Actions versions
* Bumped indra version(s)
* Switched from grgit to indra-git
* Fix PR GitHub Actions jars having invalid branch names