build: update version of Python used from 3.8 to 3.11 (#218)

The previous upgrade of the Python version from 3.8 to 3.11 didn't upgrade the version used to install requirements and push to PyPI. This commits upgrades the version of Python used in those actions to 3.11.

.github/workflows/publish-pypi.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Setup python
         uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.11
 
       - name: Install pip
         run: pip install -r requirements/pip-tools.txt

.github/workflows/upgrade-python-requirements.yml

@@ -15,7 +15,7 @@ jobs:
     uses: openedx/.github/.github/workflows/upgrade-python-requirements.yml@master
     with:
       branch: ${{ github.event.inputs.branch || 'main' }}
-      python_version: "3.8"
+      python_version: "3.11"
       # optional parameters below; fill in if you'd like github or email notifications
       # user_reviewers: ""
       # team_reviewers: ""

docs/conf.py

@@ -469,7 +469,7 @@ def get_version(*file_paths):
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {
-    'python': ('https://docs.python.org/3.8', None),
+    'python': ('https://docs.python.org/3.11', None),
     'django': ('https://docs.djangoproject.com/en/2.2/', 'https://docs.djangoproject.com/en/2.2/_objects/'),
     'model_utils': ('https://django-model-utils.readthedocs.io/en/latest/', None),
 }