Update matching.py

[emily-grabowski]

update to check for a matching assignment title instead of 'Deployed' state.

fixes #2472

[melisabok]

is there a test to verify this?

I see the previous fix was being tested but why we didn't catch this error?

[celestemartinez]

is there a test to verify this?

I see the previous fix was being tested but why we didn't catch this error?

Not sure how to test this, since the matcher is the one that calls venue.set_assignments(). This was working in the test because it looks like the ARR v2 test was setting the status of the config as 'Deployed'. However, this is done by the matcher after set_assignments() is called.

# impersonate user to get all the permissions to deploy the groups
venue.client.impersonate(self.config_note_interface.venue_id)
venue.set_assignments(
    assignment_title=self.config_note_interface.label,
    committee_id=self.config_note_interface.match_group,
    overwrite=True,
    enable_reviewer_reassignment=True,
)

self.config_note_interface.set_status(MatcherStatus.DEPLOYED)```