ci: unpin github actions related to go

[miparnisari]

this is so that when Go has a new vulnerability we don't have to update everywhere.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.73%. Comparing base (ac06a07) to head (5c83f4b).
⚠️ Report is 140 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2448      +/-   ##
==========================================
- Coverage   77.31%   75.73%   -1.58%     
==========================================
  Files         422      422              
  Lines       51275    51275              
==========================================
- Hits        39638    38826     -812     
- Misses       9133     9988     +855     
+ Partials     2504     2461      -43     

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[tstirrat15]

Yep, I'm with it