fixes the typo in custom object swagger model (kubernetes-client#277)

Signed-off-by: Min Jin <[email protected]>

Author: yue9944882

openapi/custom_objects_spec.json

@@ -44,7 +44,7 @@
       }
     }
   },
-  "/apis/{group}/{version}/{plural}#‎": {
+  "/apis/{group}/{version}/{plural}": {
     "parameters": [
       {
         "uniqueItems": true,