fix test

Author: flying-sheep

src/scanpy/_settings/verbosity.py

@@ -69,7 +69,7 @@ def override(
 
         >>> import scanpy as sc
         >>> sc.settings.verbosity = sc.Verbosity.info
-        >>> with sc.settings.verbosity.override(settings.verbosity.debug):
+        >>> with sc.settings.verbosity.override(sc.settings.verbosity.debug):
         ...     sc.settings.verbosity
         <Verbosity.debug: 4>
         >>> sc.settings.verbosity