Fix pytest python version use

Author: linuxdaemon

.github/workflows/pythonapp.yml

@@ -26,7 +26,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: "${{matrix.python-version}}"
+        python-version: "${{matrix.python-ver}}"
         cache: "pip"
         cache-dependency-path: |
           **/*requirements*.txt