Fix yaml issue

Author: davidharcombe

.github/workflows/python-package.yml .github/workflows/python-package.yaml

@@ -11,15 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
-      matrix:
-        python-version: '3.x'
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python-version }}
+    - name: Set up Python
       uses: actions/setup-python@v3
       with:
-        python-version: ${{ matrix.python-version }}
+        python-version: '3.x'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip