config: fix default value comment

[blindchaser]

Describe your changes and provide context

• update comments only, since the current values in the code already match our proposal.

Testing performed to validate your change

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 40.06%. Comparing base (c3ee918) to head (fbd3a3e).
⚠️ Report is 4 commits behind head on main.

❌ Your project status has failed because the head coverage (40.06%) is below the target coverage (60.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #115      +/-   ##
==========================================
+ Coverage   40.00%   40.06%   +0.06%     
==========================================
  Files          59       59              
  Lines        7510     7533      +23     
==========================================
+ Hits         3004     3018      +14     
- Misses       4161     4168       +7     
- Partials      345      347       +2     

Files with missing lines	Coverage Δ
config/config.go	0.00% <ø> (ø)

... and 2 files with indirect coverage changes

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[masih]

Nice; thanks @blindchaser!