lint fixes

qt/aqt/main.py

@@ -904,7 +904,7 @@ title="%s" %s>%s</button>""" % (
     def can_auto_sync(self) -> bool:
         return (
             self.pm.auto_syncing_enabled()
-            and self.pm.sync_auth()
+            and bool(self.pm.sync_auth())
             and not self.safeMode
             and not self.restoringBackup
         )

qt/aqt/taskman.py

@@ -67,7 +67,7 @@ class TaskManager(QObject):
         on_done: Optional[Callable[[Future], None]] = None,
         parent: Optional[QWidget] = None,
         label: Optional[str] = None,
-        immediate: Bool = False,
+        immediate: bool = False,
     ):
         self.mw.progress.start(parent=parent, label=label, immediate=immediate)