Set published-version github output after 'publish' task

[radoslaw-panuszewski]

Fixes #843

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 42 lines in your changes missing coverage. Please review.

Project coverage is 62.07%. Comparing base (099f892) to head (b3a9990).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...n/release/infrastructure/github/GithubService.java	0.00%	27 Missing ⚠️
...egro/tech/build/axion/release/ReleasePlugin.groovy	0.00%	13 Missing ⚠️
...llegro/tech/build/axion/release/ReleaseTask.groovy	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #847      +/-   ##
============================================
- Coverage     63.74%   62.07%   -1.68%     
  Complexity      442      442              
============================================
  Files            82       83       +1     
  Lines          1633     1677      +44     
  Branches        161      161              
============================================
  Hits           1041     1041              
- Misses          523      567      +44     
  Partials         69       69              

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