refactor: Remove redundant github.Ptr calls

[alexandear]

This PR adds redundantptr linter to detect github.Ptr(x) calls that can be replaced with simple &x.

[codecov]

Codecov Report

❌ Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 93.69%. Comparing base (5124fac) to head (005c343).

Files with missing lines	Patch %	Lines
example/commitpr/main.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4145      +/-   ##
==========================================
- Coverage   93.74%   93.69%   -0.05%     
==========================================
  Files         211      210       -1     
  Lines       19685    18999     -686     
==========================================
- Hits        18453    17801     -652     
+ Misses       1034     1012      -22     
+ Partials      198      186      -12     

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