bump github.com/golang/protobuf to v1.5.4

[frouioui]

Description

This PR bumps the github.com/golang/protobuf dependency from v1.5.3 to v1.5.4 to fix an incompatibility with the google.golang.org/[email protected] package.

Backporting this to release-18.0 and release-19.0 as we use google.golang.org/[email protected] on both branches.

Related Issue(s)

• Fixes Upgrade golang/protobuf dependency #15425

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.73%. Comparing base (983a3c8) to head (b15ad68).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15426      +/-   ##
==========================================
+ Coverage   65.72%   65.73%   +0.01%     
==========================================
  Files        1562     1562              
  Lines      193952   193952              
==========================================
+ Hits       127474   127496      +22     
+ Misses      66478    66456      -22     

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[deepthi]

May need to also backport this to release-17.0 because of #15408

[frouioui]

Manually cherry-picked this into #15408