Fix unit tests following ophyd-async changes

[rtuck99]

Fixes unit tests against the latest ophyd-async (v0.13.2) following

• Add limit checking to motor.set bluesky/ophyd-async#1032

Link to dodal PR (if required): #N/A
(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. Unit tests pass

Checks for reviewer

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

[DominicOram]

Great, thank you! Sorry, I should have checked this as part of looking at it all this morning.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.74%. Comparing base (862375d) to head (c6ee7bb).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1262   +/-   ##
=======================================
  Coverage   89.74%   89.74%           
=======================================
  Files         128      128           
  Lines        7925     7925           
=======================================
  Hits         7112     7112           
  Misses        813      813           

Components	Coverage Δ
i24 SSX	75.60% <ø> (ø)
hyperion	97.72% <ø> (ø)
other	97.96% <ø> (ø)

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