update replica gauge for endpoint and collectors

[boetro]

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[codecov]

Codecov Report

Attention: 22 lines in your changes are missing coverage. Please review.

Comparison is base (a899c7b) 74.65% compared to head (c7c8e56) 74.51%.

Files	Patch %	Lines
...tors/collector_pattern/receive_process_push_ack.py	12.50%	7 Missing ⚠️
...actors/endpoint_pattern/receive_process_respond.py	12.50%	7 Missing ⚠️
...runtime/actors/collector_pattern/collector_pool.py	20.00%	4 Missing ⚠️
...p/runtime/actors/endpoint_pattern/endpoint_pool.py	20.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #341      +/-   ##
==========================================
- Coverage   74.65%   74.51%   -0.15%     
==========================================
  Files         168      168              
  Lines        7561     7581      +20     
==========================================
+ Hits         5645     5649       +4     
- Misses       1916     1932      +16     

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