Merge pull request #34 from zarr-developers/dependabot/pip/sphinx-lt-9.1.1

Update sphinx requirement from <9.0.5 to <9.1.1

Author: JackKelly

setup.cfg

@@ -53,7 +53,7 @@ docs =
 	# upstream
 	sphinx >= 3.5
 	# workaround for sphinx/sphinx-doc#11662
-	sphinx < 9.0.5
+	sphinx < 9.1.1
 	jaraco.packaging >= 9.3
 	rst.linker >= 1.9
 	furo