Merge py3.11 branch to main - #8822

Notes for reviewer:

• df76454 merge py3.11 onto main. py3.11 branch changes to buildscripts are ignored. Commands roughly equal to:

  git merge origin/py3.11
  git checkout origin/main buildscripts azure-pipelines.yml

• 1fb49d3 undo an expectedFailure due to temporary CI config changes on py3.11 branch
• fff30e1 update the CI to include python=3.11.

Notes for reviewer:

Thanks for these notes, much appreciated.

* [df76454](https://github.com/numba/numba/commit/df76454a1eeb88c80ee77df8e2a0a925f80fb397) merge branch `py3.11` onto `main`. `py3.11` branch changes to buildscripts are ignored. Commands roughly equal to:
  ```shell
  git merge origin/py3.11
  git checkout origin/main buildscripts azure-pipelines.yml
  ```

Locally I've taken main as of 07f824e and have merged py3.11 into it as of c4168f1, then have done:

git checkout <main branch> -- buildscripts azure-pipelines.yml

and have committed the result. This to create a commit series that merges the 3.11 work with main but retains the state of the buildscripts and azure-pipelines.yml as on main. The diff of this committed result and df76454 as of this PR is empty which suggests it is as expected.

* [1fb49d3](https://github.com/numba/numba/commit/1fb49d3ad3cd59b05ded3ac4cc37d135e5d12ebd) undo an expectedFailure due to temporary CI config changes on `py3.11` branch

Seems correct.

* [fff30e1](https://github.com/numba/numba/commit/fff30e16b8f667b832e883638a3f5b227ea1e8e6) update the CI to include python=3.11.

Seems correct. The CI matrix will probably need some further adjustment, as will general build configuration, but not for this PR as it seems out of scope.

RE build failures.

• typeguard build config is failing, this is known and needs fix in Fix typeguard import hook location. #8833
• unknown issue with RTD, seems to be impacting all doc builds.