feat: Exclude unconditional peers when connection limit checking

[blindchaser]

Describe your changes and provide context

Testing performed to validate your change

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.24%. Comparing base (29b1ac3) to head (af65cbb).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #245      +/-   ##
==========================================
+ Coverage   58.03%   58.24%   +0.20%     
==========================================
  Files         249      249              
  Lines       34510    34510              
==========================================
+ Hits        20029    20100      +71     
+ Misses      12880    12828      -52     
+ Partials     1601     1582      -19     

Files with missing lines	Coverage Δ
internal/p2p/peermanager.go	79.31% <100.00%> (ø)

... and 20 files with indirect coverage changes