ci: fix goreleaser ko config

[phm07]

We accidentally used the bare and base_import_paths option at the same time, which disabled the bare option. This added extra nesting after KO_DOCKER_REPO, causing the push to Docker Hub to fail.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.36%. Comparing base (53de193) to head (b54f399).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1056   +/-   ##
=======================================
  Coverage   70.36%   70.36%           
=======================================
  Files         247      247           
  Lines       10870    10870           
=======================================
  Hits         7649     7649           
  Misses       2544     2544           
  Partials      677      677           

Flag	Coverage Δ
e2e	50.63% <ø> (-0.03%)	⬇️
unit	63.30% <ø> (ø)

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