846 convert i23 to use device factory

[rtuck99]

Part of a series of PRs that addresses

• Update MX beamlines to use new device factory #846

This PR migrates i23 to use the device_factory decorator and builds on

• Update MX beamlines to use new device factory - part 1 #975
• 846 device factory support for ophyd v1 #984

Instructions to reviewer on how to test:

1. dodal connect i23 succeeds

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

All modified and coverable lines are covered by tests ✅

Project coverage is 97.60%. Comparing base (84e49b5) to head (7368028).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #987      +/-   ##
==========================================
- Coverage   97.60%   97.60%   -0.01%     
==========================================
  Files         154      154              
  Lines        6468     6465       -3     
==========================================
- Hits         6313     6310       -3     
  Misses        155      155              

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