Seperate mutation tests

[ShawnWu33]

Pull Request

The issue or feature being addressed

Resolves #1755

Details on the issue fix or feature implementation

• Create two new workflow to cover mutation test core and mutation test legacy.
• Modify cake scirpt to accomodate another two target "MutationCore" and "MutationLegacy"
• Remove mutation test in build workflow

Tested these three workflow in my repo, below is what they lookslike during execution:
Build workflow: https://github.com/ShawnWu33/Polly/actions/runs/11216605547
Mutation core workflow: https://github.com/ShawnWu33/Polly/actions/runs/11216605554
Mutation legacy workflow: https://github.com/ShawnWu33/Polly/actions/runs/11216605545

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• I have included unit tests for the issue/feature
• I have successfully run a local build

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.40%. Comparing base (4e7d099) to head (4cf290e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2331   +/-   ##
=======================================
  Coverage   85.40%   85.40%           
=======================================
  Files         313      313           
  Lines        7467     7467           
  Branches     1126     1126           
=======================================
  Hits         6377     6377           
  Misses        745      745           
  Partials      345      345           

Flag	Coverage Δ
linux	85.37% <ø> (-0.03%)	⬇️
macos	85.40% <ø> (+0.02%)	⬆️
windows	85.40% <ø> (+0.02%)	⬆️

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[martincostello]

Just one final edit please, then this should be good to go. I'll just need to get the required statuses updated.

[martincostello]

@joelhulen Could you edit the branch protections to make the following required please?

• mutations-core
• mutations-legacy
• lint
• dependency-review
• docs
• validate-packages

[martincostello]

Thanks again for this @ShawnWu33 - this shaves a good 10-15 minutes off the total time between opening a PR and being able to merge it now.