feat(args): add --tag-pattern argument

[orhun]

Description

This PR adds --tag-pattern argument for overriding the value of git.tag_pattern in the configuration file.

Motivation and Context

closes #525

How Has This Been Tested?

Test fixtures

Types of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation (no code change)
• Refactor (refactoring production code)
• Other

Checklist:

• My code follows the code style of this project.
• I have updated the documentation accordingly.
• I have formatted the code with rustfmt.
• I checked the lints with clippy.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 41.22%. Comparing base (bb5664f) to head (dae1deb).

Files	Patch %	Lines
git-cliff/src/lib.rs	0.00%	2 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #526      +/-   ##
==========================================
- Coverage   41.30%   41.22%   -0.07%     
==========================================
  Files          15       15              
  Lines        1034     1036       +2     
==========================================
  Hits          427      427              
- Misses        607      609       +2     

Flag	Coverage Δ
unit-tests	41.22% <0.00%> (-0.07%)	⬇️

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