chore: code optimization

[testwill]

No description provided.

[codecov]

Codecov Report

Merging #3255 (e84959c) into master (2a407f5) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3255      +/-   ##
==========================================
+ Coverage   77.33%   77.42%   +0.08%     
==========================================
  Files         103      103              
  Lines       13550    13544       -6     
==========================================
+ Hits        10479    10486       +7     
+ Misses       2342     2333       -9     
+ Partials      729      725       -4     

Impacted Files	Coverage Δ
runtimevar/gcpsecretmanager/gcpsecretmanager.go	84.74% <ø> (ø)
docstore/internal/fields/fold.go	96.82% <100.00%> (-0.10%)	⬇️
internal/gcerr/gcerr.go	72.30% <100.00%> (+2.15%)	⬆️
pubsub/gcppubsub/gcppubsub.go	80.70% <100.00%> (+0.63%)	⬆️

... and 4 files with indirect coverage changes