Skip errors happening at the end of tests

Exception in thread Thread-24:
Traceback (most recent call last):
  File "/.../threading.py", line 954, in _bootstrap_inner
    self.run()
  File ".../sentry_sdk/integrations/threading.py", line 67, in run
    return old_run_func(self, *a, **kw)
  File "/.../sentry_sdk/_compat.py", line 54, in reraise
    raise value
  File "/.../sentry_sdk/integrations/threading.py", line 67, in run
    return old_run_func(self, *a, **kw)
  File "/.../threading.py", line 892, in run
    self._target(*self._args, **self._kwargs)
  File "old_functional/common.py", line 238, in launch_test
    super(TwoUsersTest, self).run(result)
  File "old_functional/common.py", line 682, in generate_report
    self.manager_1.generate_report(path=path / file)
AttributeError: 'TestRemoteDeletion' object has no attribute 'manager_1'