refactor: remove PartialEq and Eq from Specifier

[Boshen]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #148 will not alter performance

_{Comparing specifier (5525fbe) with main (7866055)}

Summary

✅ 2 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.15%. Comparing base (7866055) to head (5525fbe).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #148      +/-   ##
==========================================
+ Coverage   96.09%   96.15%   +0.05%     
==========================================
  Files          11       11              
  Lines        2282     2288       +6     
==========================================
+ Hits         2193     2200       +7     
+ Misses         89       88       -1     

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