Add useOpenTelemetryTerms feature flag

[yurishkuro]

Part of #3265

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.45%. Comparing base (be49518) to head (05f378b).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3262   +/-   ##
=======================================
  Coverage   97.45%   97.45%           
=======================================
  Files         268      268           
  Lines        8359     8359           
  Branches     2207     2175   -32     
=======================================
  Hits         8146     8146           
  Misses        210      210           
  Partials        3        3           

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