[es-index-cleaner] Use OTEL helper instead of tlscfg

[chahatsagarmain]

Which problem is this PR solving?

• Part of [Bug]: race condition when reloading TLS certificates #4316

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 60.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 96.43%. Comparing base (4d1c7d8) to head (610e730).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/es-index-cleaner/app/flags.go	60.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #6259       +/-   ##
===========================================
+ Coverage   48.76%   96.43%   +47.66%     
===========================================
  Files         179      355      +176     
  Lines       10803    20155     +9352     
===========================================
+ Hits         5268    19436    +14168     
+ Misses       5092      530     -4562     
+ Partials      443      189      -254     

Flag	Coverage Δ
badger_v1	8.31% <ø> (ø)
badger_v2	1.67% <ø> (ø)
cassandra-4.x-v1	14.39% <ø> (ø)
cassandra-4.x-v2	1.61% <ø> (ø)
cassandra-5.x-v1	14.39% <ø> (ø)
cassandra-5.x-v2	1.61% <ø> (ø)
elasticsearch-6.x-v1	18.59% <ø> (ø)
elasticsearch-7.x-v1	18.68% <ø> (ø)
elasticsearch-8.x-v1	18.85% <ø> (ø)
elasticsearch-8.x-v2	1.66% <ø> (ø)
grpc_v1	9.44% <ø> (ø)
grpc_v2	6.98% <ø> (ø)
kafka-v1	8.88% <ø> (ø)
kafka-v2	1.67% <ø> (ø)
memory_v2	1.66% <ø> (-0.01%)	⬇️
opensearch-1.x-v1	18.72% <ø> (-0.01%)	⬇️
opensearch-2.x-v1	18.73% <ø> (ø)
opensearch-2.x-v2	1.67% <ø> (ø)
tailsampling-processor	0.46% <ø> (ø)
unittests	95.34% <60.00%> (?)

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.