[WIP] ci: add job to execute miri tests in test.yml workflow

[syl20bnr]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.71%. Comparing base (5b4b334) to head (f02858b).
⚠️ Report is 30 commits behind head on main.

❌ Your project check has failed because the head coverage (62.71%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4671      +/-   ##
==========================================
- Coverage   63.04%   62.71%   -0.34%     
==========================================
  Files        1102     1103       +1     
  Lines      145228   145374     +146     
==========================================
- Hits        91566    91169     -397     
- Misses      53662    54205     +543     

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