Update deploy.yml

Author: andreabattaglia

.github/workflows/deploy.yml

@@ -9,8 +9,6 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
-        with:
-          ref: 'develop'
 
       # Use GitHub Actions' cache to shorten build times and decrease load on servers
       - uses: actions/cache@v2