remove dedicated 'check-branch' step

.build.yml

@@ -32,11 +32,10 @@ tasks:
       source bin/get-last-commit.sh
       DITHER_SERVER=http://localhost:4567 hugo --minify
       find public -name "*.enc" -type f -delete
-  - check-branch: |
+  - deploy: |
       if [ "$(git rev-parse main)" != "$(git rev-parse HEAD)" ]; then \
         complete-build; \
       fi
-  - deploy: |
       set +x
       export SERVER_IP=$(cat ~/server_ip.txt)
       rsync \