feat(eap-spans): update span-samples endpoint to use rpc

[DominikB2014]

1. When the query param useRpc equals to 1, the spans-sample endpoint will query for spans from the eap dataset via the rpc
2. Adds the bounded_sample function

In future iterations, we'll try to make this more random, but this will serve us well for testing purposes.

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 18 lines in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...c/sentry/api/endpoints/organization_events_meta.py	72.58%	17 Missing ⚠️
src/sentry/search/eap/spans/aggregates.py	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #88234      +/-   ##
==========================================
- Coverage   87.74%   87.73%   -0.01%     
==========================================
  Files       10050    10026      -24     
  Lines      568481   568364     -117     
  Branches    22322    22289      -33     
==========================================
- Hits       498786   498646     -140     
+ Misses      69316    69283      -33     
- Partials      379      435      +56     

[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ ValueError: invalid literal for int() with base 10: '466.66666666666663' /api/0/organizations/{organization_id_or_slug}/... View Issue

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