Drop support for Python 3.10, add support for Python 3.13

[DiamondJoseph]

As part of ophyd-async's opting in to SPEC 0 it is recommended to drop support for Python 3.10 this quarter: and with the release of Python 3.13 to support that instead.

Acceptance Criteria

• ophyd-async supports python 3.13 and drops support for python 3.10

[DiamondJoseph]

This may need to be split into two work packages: dropping support for python 3.10, removing 3.10 specific handling and adding support for python 3.13: which may need to propagate through our dependencies, similar to how p4p required effort to move to python 3.13

https://docs.python.org/3/whatsnew/3.10.html#deprecated
https://docs.python.org/3/whatsnew/3.11.html#deprecated
https://docs.python.org/3/whatsnew/3.12.html#deprecated
https://docs.python.org/3/whatsnew/3.13.html#deprecated