remember to login to OCI

.forgejo/workflows/build-on-commit.yml

@@ -21,6 +21,10 @@ jobs:
           echo "REPO_HOST=$(echo "${{ github.server_url }}" | sed 's~http[s]*://~~g')" >> $GITHUB_ENV
           echo "REPO_PATH=${{ github.repository }}" >> $GITHUB_ENV
 
+      - name: Login to OCI registry
+        run: |
+          echo "${{ secrets.OCI_TOKEN }}" | docker login $REPO_HOST -u "${{ secrets.OCI_USER }}" --password-stdin
+
       - name: Build and push Docker images
         run: |
           # Build Docker image with commit SHA