Update bump test cases to add more different message pattern

[josix]

Description

Add different commit messages including major, minor, patch increment and optional scope in messages to bump command testing.

Checklist

• Add test cases to all the changes you introduce
• Run ./script/format and ./script/test locally to ensure this change passes linter check and test
• Test the changes on the local machine manually
• Update the documentation for the changes

Expected behavior

All test cases should pass as usual

Steps to Test This Pull Request

Just running pytest tests/commands/test_bump_command.py

Additional context

#127

[codecov]

Codecov Report

Merging #257 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #257      +/-   ##
==========================================
+ Coverage   96.60%   96.61%   +0.01%     
==========================================
  Files          33       33              
  Lines         912      915       +3     
==========================================
+ Hits          881      884       +3     
  Misses         31       31              

Flag	Coverage Δ
#unittests	96.61% <100.00%> (+0.01%)	⬆️

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Impacted Files	Coverage Δ
commitizen/cli.py	97.36% <ø> (ø)
commitizen/__version__.py	100.00% <100.00%> (ø)
commitizen/commands/check.py	100.00% <100.00%> (ø)

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[woile]

Nice work!!

@Lee-W Is this enough to close the issues? What do you think?