Finalising all rsyncers through the instrument server seems to cause connection issues with the database

[d-j-hatton]

The first error log:

`sqlalchemy.exc.OperationalError: (psycopg2.OperationalError) server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.

[SQL: SELECT session.id, session.name, session.visit, session.started, session.current_gain_ref, session.instrument_name
FROM session
WHERE session.id = %(id_1)s]
[parameters: {'id_1': 22}]
(Background on this error at: https://sqlalche.me/e/20/e3q8)`

occurring in validate_instrument_server_session_token in auth.

The rsyncer finalisatons happen outside of threads (

python-murfey/src/murfey/client/multigrid_control.py

Line 169 in 7e41242

kwargs={"thread": False},

) which may cause issues

[d-j-hatton]

I think ignore the "thread": False thing. That's because it is already happening in a thread