use python 3.10 for compatibility with specific pylint version

Author: jepler

.github/workflows/githubci.yml

@@ -87,10 +87,10 @@ jobs:
   pylint:
     runs-on: ubuntu-latest
     steps:
-    - name: Set up Python 3.x
+    - name: Set up Python 3.10
       uses: actions/setup-python@v4
       with:
-        python-version: "3.x"
+        python-version: "3.10"
     - name: Versions
       run: |
         python3 --version