Add wurlitzer stubs (#11459)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Akuli <akuviljanen17@gmail.com>

pyrightconfig.stricter.json

@@ -79,6 +79,7 @@
         "stubs/ttkthemes",
         "stubs/vobject",
         "stubs/workalendar",
+        "stubs/wurlitzer",
     ],
     "typeCheckingMode": "strict",
     // TODO: Complete incomplete stubs