fix(ci): set APP_ENV=test and clean up workflow YAML

- Set APP_ENV=test in test job to use Turnstile test keys
- Remove empty lines between steps in build job
- Add explicit 'Checkout' step name for clarity

.forgejo/workflows/deploy.yaml

@@ -33,6 +33,8 @@ jobs:
     runs-on: [linux, docker]
     container:
       image: catthehacker/ubuntu:act-latest
+    env:
+      APP_ENV: test
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python
@@ -87,27 +89,24 @@ jobs:
     container:
       image: catthehacker/ubuntu:act-latest
     steps:
-      - uses: actions/checkout@v4
-
+      - name: Checkout
+        uses: actions/checkout@v4
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
           registry: docker.io
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
           driver: docker
-
       - name: Login to Registry
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}
-
       - name: Build and push
         uses: docker/build-push-action@v5
         with: