fix lint errors, bump linter up to 1.52

[bobcallaway]

No description provided.

[codecov]

Codecov Report

Merging #1485 (c8fa831) into main (3282e1a) will increase coverage by 0.11%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##             main    #1485      +/-   ##
==========================================
+ Coverage   64.33%   64.44%   +0.11%     
==========================================
  Files          80       80              
  Lines        7789     7780       -9     
==========================================
+ Hits         5011     5014       +3     
+ Misses       2129     2121       -8     
+ Partials      649      645       -4     

Flag	Coverage Δ
e2etests	48.27% <42.85%> (+0.05%)	⬆️
unittests	44.73% <33.33%> (+0.08%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/api/entries.go	64.87% <0.00%> (ø)
pkg/api/index.go	69.56% <0.00%> (ø)
pkg/api/public_key.go	28.57% <0.00%> (ø)
pkg/api/tlog.go	39.02% <0.00%> (ø)
pkg/types/cose/v0.0.1/entry.go	54.97% <0.00%> (ø)
pkg/types/test_util.go	0.00% <0.00%> (ø)
cmd/rekor-cli/app/state/state.go	65.38% <100.00%> (+3.56%)	⬆️
cmd/rekor-cli/app/upload.go	55.45% <100.00%> (+1.47%)	⬆️
cmd/rekor-cli/app/verify.go	57.62% <100.00%> (+1.42%)	⬆️
pkg/pki/minisign/minisign.go	75.83% <100.00%> (ø)
... and 9 more

... and 1 file with indirect coverage changes