chore(deps): update python docker tag to v3.12

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
python	final	minor	3.11-slim-bookworm -> 3.12-slim-bookworm
python	stage	minor	3.11-bookworm -> 3.12-bookworm
python	stage	minor	3.11-slim-bookworm -> 3.12-slim-bookworm

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[mkuf]

Requires https://github.com/Klipper3d/klipper/pull/6525 to be merged, as greenlet 2.0.2 is not compatible w/ python 3.12 and causing the actions for klipper to fail.

[mkuf]

https://github.com/mkuf/prind/pull/125/commits/fae1b121e26f65e2e28cc1b37fb3eb679068d2f6 updates numpy to the latest version for python 3.12