add support for python 3.12

[chrisroadmap]

Pull request

Please confirm that this pull request has done the following:

• ~Tests added~
• [x] Documentation added (where applicable)
• ~Example added (either to an existing notebook or as a new notebook, where applicable)~
• [x] Description in CHANGELOG.rst added

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.65%. Comparing base (bea6d7d) to head (7ddb4c5).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #153 +/- ## ======================================= Coverage 94.65% 94.65% ======================================= Files 20 20 Lines 711 711 Branches 108 108 ======================================= Hits 673 673 Misses 16 16 Partials 22 22 ```

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