OPRUN-4642: Update to golang-1.26.3

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 22.16%. Comparing base (da918bd) to head (d646c35).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #497   +/-   ##
=======================================
  Coverage   22.16%   22.16%           
=======================================
  Files          60       60           
  Lines        7872     7872           
=======================================
  Hits         1745     1745           
  Misses       5969     5969           
  Partials      158      158           

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