[tracegen] Allow use of adaptive sampling

[yurishkuro]

Which problem is this PR solving?

• Part of Create e2e integration tests for Adaptive Sampling #5717

Description of the changes

• Add a new flag to tracegen to allow it to use jaegerremotesampling contrib module with OTEL SDK

How was this change tested?

• It's not actually working at the moment, the backend does not recognize the spans without sampling tags

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.87%. Comparing base (13c715b) to head (2c03e7c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5718      +/-   ##
==========================================
- Coverage   96.89%   96.87%   -0.02%     
==========================================
  Files         334      334              
  Lines       16146    16146              
==========================================
- Hits        15644    15642       -2     
- Misses        333      334       +1     
- Partials      169      170       +1     

Flag	Coverage Δ
badger_v1	8.06% <ø> (ø)
badger_v2	1.90% <ø> (ø)
cassandra-3.x-v1	16.62% <ø> (ø)
cassandra-3.x-v2	1.82% <ø> (ø)
cassandra-4.x-v1	16.62% <ø> (ø)
cassandra-4.x-v2	1.82% <ø> (ø)
elasticsearch-6.x-v1	18.80% <ø> (+0.01%)	⬆️
elasticsearch-7.x-v1	18.86% <ø> (ø)
elasticsearch-8.x-v1	19.05% <ø> (ø)
elasticsearch-8.x-v2	1.90% <ø> (+0.01%)	⬆️
grpc_v1	9.45% <ø> (-0.02%)	⬇️
grpc_v2	7.39% <ø> (-0.02%)	⬇️
kafka	9.75% <ø> (ø)
opensearch-1.x-v1	18.90% <ø> (ø)
opensearch-2.x-v1	18.90% <ø> (ø)
opensearch-2.x-v2	1.90% <ø> (ø)
unittests	95.26% <ø> (-0.02%)	⬇️

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.

[jkowall]

LGTM!