TRACING-4238 | Fix gatewat 502 timeout

[pavolloffay]

Which problem is this PR solving?

https://issues.redhat.com/browse/TRACING-4238

Description of the changes

How was this change tested?

Checklist

• I have read https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
• I have signed all commits
• I have added unit tests for the new functionality
• I have run lint and test steps successfully
  • for jaeger: make lint test
  • for jaeger-ui: yarn lint and yarn test

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Project coverage is 75.48%. Comparing base (a2e03e2) to head (81d46ac).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/cmd/start/main.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2694      +/-   ##
==========================================
+ Coverage   75.47%   75.48%   +0.01%     
==========================================
  Files         124      124              
  Lines        8525     8529       +4     
==========================================
+ Hits         6434     6438       +4     
  Misses       1894     1894              
  Partials      197      197              

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