bump golangci-lint to 2.6.2

[bluenviron-bot]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.73%. Comparing base (c65b9ed) to head (43da95e).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #229      +/-   ##
==========================================
- Coverage   80.74%   80.73%   -0.02%     
==========================================
  Files         711      713       +2     
  Lines        7209     7226      +17     
==========================================
+ Hits         5821     5834      +13     
- Misses        779      781       +2     
- Partials      609      611       +2     

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