Bump: Gradle to 7.0 and plugins

[marandaneto]

📜 Description

Bump: Gradle to 7.0 and plugins

#skip-changelog

💡 Motivation and Context

Gradle 7 is less flaky when uploading artifacts to MC
See vanniktech/gradle-maven-publish-plugin#232

💚 How did you test it?

📝 Checklist

• I reviewed the submitted code
• I added tests to verify the changes
• I updated the docs if needed
• No breaking changes

🔮 Next steps

[codecov-commenter]

Codecov Report

Merging #1451 (d084484) into main (59a2b41) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #1451   +/-   ##
=========================================
  Coverage     75.87%   75.87%           
  Complexity     1901     1901           
=========================================
  Files           189      189           
  Lines          6499     6499           
  Branches        640      640           
=========================================
  Hits           4931     4931           
  Misses         1272     1272           
  Partials        296      296           

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