feat(conventional_commits): Add exclamation on commit title for breaking change

[bastien31]

Add a configuration (disable by default) to allow exclamation in commit title to ease identify BC simple git log parsing.

Description

Conventional commit allow to put breaking change exclamation character in git commit title.
This is a useful convention to identify BC commit from the title only.
As it is supported in commitizen parsing, add the option to generate it.

Checklist

• I have read the contributing guidelines

Code Changes

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

Documentation Changes

• Run poetry doc locally to ensure the documentation pages renders correctly
• Check and fix any broken links (internal or external) in the documentation

When running poetry doc, any broken internal documentation links will be reported in the console output like this:

INFO    -  Doc file 'config.md' contains a link 'commands/bump.md#-post_bump_hooks', but the doc 'commands/bump.md' does not contain an anchor '#-post_bump_hooks'.

Expected Behavior

Steps to Test This Pull Request

Additional Context

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (v4-9-2@835ccb4). Learn more about missing BASE report.

Additional details and impacted files

@@            Coverage Diff            @@
##             v4-9-2    #1576   +/-   ##
=========================================
  Coverage          ?   98.72%           
=========================================
  Files             ?       60           
  Lines             ?     2667           
  Branches          ?        0           
=========================================
  Hits              ?     2633           
  Misses            ?       34           
  Partials          ?        0           

Flag	Coverage Δ
unittests	98.72% <100.00%> (?)

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[bastien31]

Tested manually:

[bastien31]

After a rebase on master, I had to add following fix 186fbd83fc7d2fa8c363fa2a08a7d901a657517c to get tests passed.
Also, on my side, I need to add "deprecated" library to get commitizen running.

[Lee-W]

yep, this needs #1591 to be merged

[bastien31]

Ready for review.