Hardcode registry for test

Author: Oleg

.github/workflows/build.yml

@@ -8,7 +8,8 @@ on:
       - "wip*"
 
 env:
-  IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
+  # IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
+  IMAGE_REGISTRY: ghcr.io/optimumcode # github does not like upper case in registry as far as I know
 
 concurrency:
   group: images-${{ github.ref }}