Trying another approach

.gitea/workflows/docker.yml

@@ -18,8 +18,8 @@ jobs:
       - name: Login to Docker Registry
         uses: docker/login-action@v3
         with:
-          registry: ${{ secrets.DOCKER_REGISTRY }}
-          username: ${{ secrets.DOCKER_USERNAME }}
+          registry: ${{ variables.REGISTRY }}
+          username: ${{ variables.USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Build and push
@@ -28,7 +28,7 @@ jobs:
           context: .
           push: true
           tags: |
-            ${{ secrets.DOCKER_REGISTRY }}/connor/calendar:latest
-            ${{ secrets.DOCKER_REGISTRY }}/connor/calendar:${{ github.sha }}
+            ${{ variables.REGISTRY }}/connor/calendar:latest
+            ${{ variables.REGISTRY }}/connor/calendar:${{ github.sha }}
           cache-from: type=gha
           cache-to: type=gha,mode=max