The "actions" endpoint shouldn't be tagged

The actions endpoint (responds only to GET, lists the actions)
is not itself an action.
The ``@tag("actions")`` causes LabThings to try to include
it as an action, which fails.
Removing the tag makes the server run again -
but maybe I've broken something else here?

openflexure_microscope/api/v2/views/actions/__init__.py

@@ -58,7 +58,7 @@ def enabled_root_actions():
     return {k: v for k, v in _actions.items() if v["conditions"]}
 
 
-@Tag("actions")
+#@Tag("actions")
 class ActionsView(View):
     def get(self):
         """