Updating python version to 3.11

Support for 3.6 has been dropped from this conversation: https://github.com/actions/setup-python/issues/544

.github/workflows/linting.yaml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/setup-python@v2
         with:
           # Semantic version range syntax or exact version of a Python version
-          python-version: '3.6'
+          python-version: '3.11'
           # Optional - x64 or x86 architecture, defaults to x64
           architecture: 'x64'
       - name: find trailing whitespace