Fix release to maven central

[nulls]

What's done:

• added sources for all modules
• refactored creating publication for gradle plugin

[codecov[bot]]

Codecov Report

Merging #1788 (bd018b4) into master (d48f947) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1788   +/-   ##
=========================================
  Coverage     78.41%   78.41%           
  Complexity     2420     2420           
=========================================
  Files           126      126           
  Lines          8466     8466           
  Branches       2147     2147           
=========================================
  Hits           6639     6639           
  Misses          867      867           
  Partials        960      960           

[github-actions[bot]]

JUnit Tests (macOS, EnricoMi/publish-unit-test-result-action@v2)

   165 files  ±0     165 suites  ±0   8m 19s :stopwatch: -2s 1 395 tests ±0  1 359 :heavy_check_mark: ±0  36 :zzz: ±0  0 :x: ±0  2 774 runs  ±0  2 738 :heavy_check_mark: ±0  36 :zzz: ±0  0 :x: ±0 

Results for commit bd018b48. ± Comparison against base commit d48f9479.

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

JUnit Tests (Windows, EnricoMi/publish-unit-test-result-action@v2)

   165 files  ±0     165 suites  ±0   6m 52s :stopwatch: - 5m 42s 1 395 tests ±0  1 378 :heavy_check_mark: ±0  17 :zzz: ±0  0 :x: ±0  2 774 runs  ±0  2 757 :heavy_check_mark: ±0  17 :zzz: ±0  0 :x: ±0 

Results for commit bd018b48. ± Comparison against base commit d48f9479.

:recycle: This comment has been updated with latest results.