feat(version): add --tag for version command

[yjaw]

Description

Add --tag flag to cz version command to output version with
configured tag_format applied (e.g., v1.2.3 instead of 1.2.3).

• Add --tag option to CLI arguments
• Implement tag formatting using TagRules.normalize_tag()
• Add error handling for invalid option combinations
• Update tests to match new error messages

Closes #1765

Checklist

• [o] I have read the contributing guidelines

Code Changes

• [o] Add test cases to all the changes you introduce
• [o] Run uv run poe all locally to ensure this change passes linter check and tests
• [o] Manually test the changes:
• [o] Verify the feature/bug fix works as expected in real-world scenarios
• [o] Test edge cases and error conditions
• [o] Ensure backward compatibility is maintained
• Document any manual testing steps performed
• Update the documentation for the changes

Steps to Test This Pull Request

Additional Context

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.96%. Comparing base (5857050) to head (c366400).
⚠️ Report is 13 commits behind head on next-release.

Additional details and impacted files

@@              Coverage Diff              @@
##           next-release    #1819   +/-   ##
=============================================
  Coverage         97.96%   97.96%           
=============================================
  Files                60       60           
  Lines              2648     2656    +8     
=============================================
+ Hits               2594     2602    +8     
  Misses               54       54           

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