Always send cancels even if peer has no interest

[gammazero]

Possible fix for memory leak in wantlists.

It appears necessary to send cancels even if the receiving peer has no interest in the CIDs according to the session interest manager. The handling of cancels cleans up the CIDs that remain on the peerwantmanager wantlists.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.43%. Comparing base (49f6c15) to head (f4b6a03).
Report is 1 commits behind head on main.

@@            Coverage Diff             @@
##             main     #829      +/-   ##
==========================================
- Coverage   60.46%   60.43%   -0.04%     
==========================================
  Files         244      244              
  Lines       31121    31125       +4     
==========================================
- Hits        18817    18810       -7     
- Misses      10626    10634       +8     
- Partials     1678     1681       +3     

Files with missing lines	Coverage Δ
...tswap/client/internal/messagequeue/messagequeue.go	85.42% <ø> (+1.30%)	⬆️
...p/client/internal/sessionmanager/sessionmanager.go	96.15% <100.00%> (+0.15%)	⬆️

... and 10 files with indirect coverage changes

[hsanjuan]

Minor nitpick