Update golang:1.21.6-alpine3.19 Docker digest to a49e510

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
golang	stage	digest	cc2ee3c -> a49e510

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6568240) 36.40% compared to head (34e10d3) 36.40%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #862   +/-   ##
=======================================
  Coverage   36.40%   36.40%           
=======================================
  Files           5        5           
  Lines         228      228           
=======================================
  Hits           83       83           
  Misses        140      140           
  Partials        5        5           

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