[3.4] Update deps, allow Python 3.9, drop Fedora 32 (#5121) (#5296)

* Update deps + allow Python 3.9

* Add in updates from Jack's branch

* Fix multiple target for cross-reference warnings

* Update a few more Python 3.8 occurrences

* Bump further

* Don't install tox in CodeQL environment

* Bump Python version in docs to 3.9.7

* more bumps

* Add missing pin

* Stop using the deprecated distro.linux_distribution()

* Suppress deprecation warning

* Fix OpenSUSE Leap instructions

* Drop Fedora 32

* Add Python 3.10-dev to CI

* meh

(cherry picked from commit 3254698c78)

Co-authored-by: palmtree5 <3577255+palmtree5@users.noreply.github.com>
Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

Co-authored-by: palmtree5 <3577255+palmtree5@users.noreply.github.com>
Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

.github/workflows/codeql-analysis.yml

@@ -27,7 +27,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install -U pip setuptools wheel
-        python -m pip install -r ./tools/dev-requirements.txt
+        python -m pip install .[all]
         # Set the `CODEQL-PYTHON` environment variable to the Python executable
         # that includes the dependencies
         echo "CODEQL_PYTHON=$(which python)" >> $GITHUB_ENV