Fix Quay registry namespace: chcollin → clcollins

[clcollins]

Summary

• Fix Quay registry namespace from chcollin to clcollins in Makefile, image-build-push workflow, and CI workflow
• This was causing authentication required errors on image push

Test plan

• Confirm image-build-push workflow pushes successfully to quay.io/clcollins/gort

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.15%. Comparing base (0b2a4a2) to head (1d89049).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #9   +/-   ##
=======================================
  Coverage   52.15%   52.15%           
=======================================
  Files          12       12           
  Lines        1020     1020           
=======================================
  Hits          532      532           
  Misses        430      430           
  Partials       58       58           

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