chore: bump Go version to 1.26.6

[rambohe (rambohe-ch)]

No description provided.

[Codecov Comments Bot (codecov-commenter)]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.25%. Comparing base (c09a56c) to head (e25544c).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #311   +/-   ##
=======================================
  Coverage   71.25%   71.25%           
=======================================
  Files           4        4           
  Lines         407      407           
=======================================
  Hits          290      290           
  Misses         98       98           
  Partials       19       19           

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