feat(#25): ChangesCount, ChangesCountTest

[h1alexbel]

closes #25

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PR-Codex overview

This PR updates the minimum value for coverage ratio in pom.xml, adds a min_lines parameter in action.yml, and introduces a ChangesCount class for calculating changes in pull requests.

Detailed summary

• Updated minimum coverage ratio in pom.xml
• Added min_lines parameter in action.yml
• Introduced ChangesCount class for calculating PR changes

The following files were skipped due to too many changes: src/test/resources/git/tracehub/codereview/action/github/files.json

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[codecov]

Codecov Report

Attention: Patch coverage is 35.71429% with 9 lines in your changes are missing coverage. Please review.

Project coverage is 31.85%. Comparing base (be1f738) to head (12c1592).
Report is 3 commits behind head on master.

Files	Patch %	Lines
...ain/java/git/tracehub/codereview/action/Entry.java	0.00%	9 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #48      +/-   ##
============================================
+ Coverage     31.31%   31.85%   +0.54%     
- Complexity       10       13       +3     
============================================
  Files             9       10       +1     
  Lines            99      113      +14     
  Branches          2        4       +2     
============================================
+ Hits             31       36       +5     
- Misses           66       75       +9     
  Partials          2        2              

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[h1alexbel]

@rultor merge

[rultor]

@rultor merge

@h1alexbel OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@h1alexbel Done! FYI, the full log is here (took me 3min)

[h1alexbel]

@rultor release, tag is 0.0.12

[rultor]

@rultor release, tag is 0.0.12

@h1alexbel OK, I will release it now. Please check the progress here

[rultor]

@rultor release, tag is 0.0.12

@h1alexbel Done! FYI, the full log is here (took me 3min)