chore: create .gitattributes for consistent EOL handling

[lumirlumir]

This pull request includes changes to ensure consistent end-of-line (EOL) settings across all text files and updates to the synchronization configuration for the repository. The most important changes are:

EOL consistency:

• .gitattributes: Added configurations to ensure consistent EOL (LF) for all text files.

Synchronization configuration updates:

• .github/sync-client.yml: Added .gitattributes to the list of files to be synchronized to the ./configs directory.

[github-actions]

Labels have been automatically applied based on the conventional commit types.🏷️

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (eb9d11f) to head (295eeb2).
Report is 1 commits behind head on main.

@@            Coverage Diff            @@
##              main      #144   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           11        11           
  Lines           61        61           
=========================================
  Hits            61        61           

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