Quote python version in release workflow

Author: RobbeSneyders

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Set up Python 3.10
       uses: actions/setup-python@v1
       with:
-        python-version: 3.10
+        python-version: '3.10'
 
     - name: Update version
       run: sed -i "s/version = .*/version = '${{github.ref_name}}'/" pyproject.toml