[CapMan visibility] Make it more obvious that throttled queries are just warnings, not errors

[xurui-c]

No description provided.

[sentry]

🔍 Existing Issues For Review

Your pull request is modifying functions with the following pre-existing issues:

📄 File: src/sentry/utils/snuba.py

Function	Unhandled Issue
_bulk_snuba_query	RateLimitExceeded: Query on could not be run due to allocation policies, info: {'details': {'ConcurrentRateLimitAllo... ... Event Count: 195
_bulk_snuba_query	RateLimitExceeded: Query on could not be run due to allocation policies, info: {'details': {'ConcurrentRateLimitAllo... ... Event Count: 187
_bulk_snuba_query	RateLimitExceeded: Query on could not be run due to allocation policies, info: {'details': {'ReferrerGuardRailPolicy... ... Event Count: 108
_bulk_snuba_query	QueryExecutionError: DB::Exception: Attempt to read after eof: while receiving packet from snuba-errors-tiger-mz-2-1:9... ... Event Count: 2
_bulk_snuba_query	RateLimitExceeded: Query on could not be run due to allocation policies, info: {'details': {'ConcurrentRateLimitAllo... ... Event Count: 1

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.12%. Comparing base (fd53a31) to head (0e5bf4d).
Report is 11 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #75101      +/-   ##
==========================================
- Coverage   78.13%   78.12%   -0.01%     
==========================================
  Files        6751     6751              
  Lines      301303   301303              
  Branches    51843    51843              
==========================================
- Hits       235412   235397      -15     
- Misses      59565    59574       +9     
- Partials     6326     6332       +6     

Files	Coverage Δ
src/sentry/utils/snuba.py	90.00% <100.00%> (ø)

... and 8 files with indirect coverage changes