Add debug to workflow

.gitea/workflows/docker.yaml

@@ -11,11 +11,22 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Debug auth vars
+        env:
+          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
+          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          echo "USER: $REGISTRY_USER"
+          echo "TOKEN LENGTH: ${#REGISTRY_TOKEN}"
 
       - name: Login to Gitea Registry
+        env:
+          REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
+          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
         run: |
-          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login gitea.umbra.mom \
+          echo "$REGISTRY_TOKEN" | docker login gitea.umbra.mom \
-            -u "${{ secrets.REGISTRY_USER }}" --password-stdin
+            -u "$REGISTRY_USER" \
+            --password-stdin
 
       - name: Build image
         run: |