ci: fix workflow - remove newline escape, simplify push conditional

.gitea/workflows/build-runner-images.yml

@@ -44,7 +44,7 @@ jobs:
           done
 
       - name: Push images (main only)
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        if: github.event_name == 'push'
         run: |
           echo "${REGISTRY_TOKEN}" | docker login "${REGISTRY}" \
             --username "${REGISTRY_USER}" --password-stdin
@@ -54,7 +54,7 @@ jobs:
             docker push "${IMAGE_BASE}/forgejo-runner-${RUNNER}:latest"
             echo "✅ Pushed ${RUNNER}-runner"
           done
-          echo "\n✅ All runner images pushed to registry"
+          echo "✅ All runner images pushed to registry"
         env:
           REGISTRY_USER: ${{ secrets.FORGEJO_REGISTRY_USER }}
           REGISTRY_TOKEN: ${{ secrets.FORGEJO_REGISTRY_TOKEN }}