Convert CTAB to ophyd_async

[olliesilvester]

Fixes #687

Instructions to reviewer on how to test:

1. Check components have been changed to the correct type

Checks for reviewer

• Would the PR title make sense to a scientist on a set of release notes
• If a new device has been added does it follow the standards
• If changing the API for a pre-existing device, ensure that any beamlines using this device have updated their Bluesky plans accordingly
• Have the connection tests for the relevant beamline(s) been run via dodal connect ${BEAMLINE}

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.

Project coverage is 94.31%. Comparing base (5c8c4d7) to head (80f8fd5).

Files	Patch %	Lines
src/dodal/devices/CTAB.py	0.00%	19 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #728      +/-   ##
==========================================
- Coverage   94.39%   94.31%   -0.09%     
==========================================
  Files         110      110              
  Lines        4392     4396       +4     
==========================================
  Hits         4146     4146              
- Misses        246      250       +4     

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[olliesilvester]

This never had any tests since the device hasn't been used in bluesky yet, so I vote we ignore the CI

[dperl-dls]

looks fine to me