Create a test to reproduce connection failures

[DominicOram]

In Hyperion we are seeing random ophyd-async reconnect issues DiamondLightSource/mx-bluesky#284. It would be good to get to the bottom of these.

Acceptance Criteria

• We write a dummy application that periodically reconnects to ophyd-async devices on i03 and try and reproduce the error. (We do not want to do this in a tight loop and steal all the resources, also probably best ran supervised on a beam off day)
• We try and find a pattern that can help us with diagnosing the issue

[callumforrester]

@DominicOram is this still an issue and can it go in the hackathon?

[coretl]

Connections are now cached in DiamondLightSource/hyperion#294

[coretl]

@DominicOram is this still an issue?

[DominicOram]

i don't think so. Happy to close and re-open if we see it again