use custom image

.gitea/workflows/gentoo-utils.yml

@@ -15,7 +15,7 @@ jobs:
   build-oci-image:
     runs-on: zergling-dev
     container:
-      image: docker.gitea.com/runner-images:ubuntu-latest
+      image: git.epenguin.net/penguin/oci-builder:latest 
     continue-on-error: true
     steps:
       - name: Restore git cache
@@ -65,6 +65,7 @@ jobs:
           echo "comparison_hash=$comparison_hash" >> $GITEA_OUTPUT
           echo "build_image=$build_image" >> $GITEA_OUTPUT
           cat $GITEA_OUTPUT
+
       # - name: Set up Docker buildx
       #   if: steps.image-changes.outputs.build_image == 'true'
       #   uses: docker/setup-buildx-action@v3