commands: work around a new flake8 failure

Suddenly, on the new f43 image ci run flake8 fails. Looking at the error
and the code I think this failure is incorrect but I don't want to block
the CI and wait for flake8 to be changed. The workaround is low cost and
not much harder to understand than the original code.

Signed-off-by: John Mulligan <jmulligan@redhat.com>

Author: phlogistonjohn

sambacc/commands/cli.py

@@ -25,9 +25,9 @@
 
 from sambacc import config
 from sambacc import leader
-from sambacc import opener
 from sambacc import permissions
 from sambacc import simple_waiter
+from sambacc.opener import Opener
 
 _INOTIFY_OK = True
 try:
@@ -224,7 +224,7 @@ def require_validation(self) -> typing.Optional[bool]:
         """Return true if configuration needs validation."""
 
     @property
-    def opener(self) -> opener.Opener:
+    def opener(self) -> Opener:
         """Return an appropriate opener object for this instance."""