[DENG-7762] Re-enable user-characteristics ping for firefox android

[BenWu]

https://mozilla-hub.atlassian.net/browse/DENG-7762

This was a temporary block and we'll want to start collecting these pings again

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.83%. Comparing base (5fc8a4e) to head (da5c73a).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2751      +/-   ##
============================================
- Coverage     84.85%   84.83%   -0.02%     
+ Complexity      950      944       -6     
============================================
  Files           125      125              
  Lines          5348     5342       -6     
  Branches        545      541       -4     
============================================
- Hits           4538     4532       -6     
  Misses          631      631              
  Partials        179      179              

Flag	Coverage Δ
ingestion_beam	82.26% <ø> (-0.03%)	⬇️

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