Update pyproject.toml, CI, docs to support python 3.14

[rtuck99]

Fixes #1717

Link to dodal PR (if required):

• dodal Support for python 3.14 dodal#2045

(remember to update pyproject.toml with the dodal commit tag if you need it for tests to pass!)

Instructions to reviewer on how to test:

1. Tests pass
2. Confirm thing y happens

Checks for reviewer

• Would the PR title make sense to a user on a set of release notes

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.84%. Comparing base (700bc7e) to head (8c89a8a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1722   +/-   ##
=======================================
  Coverage   92.84%   92.84%           
=======================================
  Files         156      156           
  Lines        8557     8557           
=======================================
  Hits         7945     7945           
  Misses        612      612           

Components	Coverage Δ
i24 SSX	77.15% <ø> (ø)
hyperion	98.65% <ø> (ø)
other	98.31% <ø> (ø)

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