Wait for the robot to report the puck/pin value instead of just waiting for beamline enable flag

[rtuck99]

Fixes #1950

Instructions to reviewer on how to test:

1. Tests pass
2. Robot load does not proceed until the correct puck and pin are reported

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 99.10%. Comparing base (e0e8710) to head (ed62f9a).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1951   +/-   ##
=======================================
  Coverage   99.10%   99.10%           
=======================================
  Files         319      319           
  Lines       12230    12242   +12     
=======================================
+ Hits        12121    12133   +12     
  Misses        109      109           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[jacob720]

Looks good, just one comment

[jacob720]

Should this comment be here?

[rtuck99]

I will remove it, when we pick up the log message the side effect is now what enables the beamline