Update go-log to v2.8.1

[gammazero]

Update go-log to v2.8.1 and replace calls to log.Level().Enabled(zapcore.Level(logging.LevelDebug)) with log.LevelEnabled(logging.LevelDebug)

[codecov]

Codecov Report

❌ Patch coverage is 42.85714% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.49%. Comparing base (fe649ee) to head (08f788c).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
bitswap/client/client.go	0.00%	0 Missing and 2 partials ⚠️
gateway/blockstore.go	0.00%	2 Missing ⚠️

@@            Coverage Diff             @@
##             main     #998      +/-   ##
==========================================
+ Coverage   60.46%   60.49%   +0.03%     
==========================================
  Files         265      266       +1     
  Lines       33234    33255      +21     
==========================================
+ Hits        20094    20117      +23     
+ Misses      11480    11475       -5     
- Partials     1660     1663       +3     

Files with missing lines	Coverage Δ
...tswap/client/internal/messagequeue/messagequeue.go	84.68% <100.00%> (+1.29%)	⬆️
bitswap/client/internal/session/session.go	90.60% <100.00%> (+0.37%)	⬆️
...uting/providerquerymanager/providerquerymanager.go	87.81% <100.00%> (+0.89%)	⬆️
bitswap/client/client.go	78.22% <0.00%> (ø)
gateway/blockstore.go	0.00% <0.00%> (ø)

... and 10 files with indirect coverage changes

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