chore(ci) fix "make tidy"

[jpeach]

Summary

Fix "make tidy".

Full changelog

N/A

Issues resolved

Fix #2088.

Documentation

N/A

Testing

• Unit tests
• E2E tests
• Manual testing on Universal
• Manual testing on Kubernetes

Backwards compatibility

• Add backport-to-stable label if the code is backwards compatible. Otherwise, list breaking changes.

[codecov-commenter]

Codecov Report

Merging #2818 (9976ebd) into master (7756bb3) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2818      +/-   ##
==========================================
+ Coverage   52.05%   52.08%   +0.02%     
==========================================
  Files         882      882              
  Lines       51321    51321              
==========================================
+ Hits        26715    26728      +13     
+ Misses      22483    22468      -15     
- Partials     2123     2125       +2     

Impacted Files	Coverage Δ
pkg/xds/generator/direct_access_proxy_generator.go	83.90% <0.00%> (+1.14%)	⬆️
pkg/core/bootstrap/autoconfig.go	54.46% <0.00%> (+8.03%)	⬆️
pkg/kds/client/sink.go	67.56% <0.00%> (+8.10%)	⬆️

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