chore: update pex replica clean logic

[jim3ma]

Description

Related Issue

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[codecov]

Codecov Report

Attention: Patch coverage is 40.00000% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 52.67%. Comparing base (7c69d5d) to head (32747cd).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3272      +/-   ##
==========================================
- Coverage   52.87%   52.67%   -0.20%     
==========================================
  Files         192      192              
  Lines       20372    20399      +27     
==========================================
- Hits        10772    10746      -26     
- Misses       8798     8846      +48     
- Partials      802      807       +5     

Flag	Coverage Δ
unittests	52.67% <40.00%> (-0.20%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
client/config/peerhost.go	47.46% <ø> (ø)
client/config/peerhost_linux.go	100.00% <100.00%> (ø)
client/daemon/pex/peer_exchange.go	69.94% <21.05%> (-11.27%)	⬇️

... and 4 files with indirect coverage changes

[gaius-qi]

LGTM