gh-actions drop python version for distutils

.github/workflows/fluxdataqaqc_tests.yml

@@ -8,10 +8,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.12
+    - name: Set up Python 3.8
       uses: actions/setup-python@v2
       with:
-        python-version: 3.12
+        python-version: 3.8
     - name: Install dependencies
       run: |
         # $CONDA is an environment variable pointing to the root of the miniconda directory