Removed redundant Python version from the publish workflow (#666)

Author: DimitriPapadopoulos

.github/workflows/publish.yml

@@ -16,8 +16,6 @@ jobs:
     - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v5
-      with:
-        python-version: 3.x
     - name: Install dependencies
       run: pip install flit
     - name: Create packages