Add python 3.12 support

[fselmo]

What was wrong?

closes #2169

How was it fixed?

• Add relevant Python 3.12 CI runs, copy the new windows CI setup from the template.
• Bump hypothesis to >6,<7 (this is only for tests install extra, should be OK / non-breaking)
• Silence some minor warnings related to new hypothesis version. When @given() is used with a function-scoped fixture, it doesn't re-generate the values at the function level. I think this is OK for the tests that had this issue but double check to make sure I didn't miss anything.
• Use an int (10**18) instead of a float (10e18) for random.randint() as it now raises an exception.

Todo:

• Clean up commit history
• Add or update documentation related to these changes
• Add entry to the release notes

Cute Animal Picture

[reedsa]

Lgtm

[kclowes]

LGTM! 🎉