Updated workflow with new python-version

.github/workflows/l3d_workflow.yml

@@ -21,6 +21,8 @@ jobs:
     - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
 
     - name: Install dependencies
       run: |