remove required parameter in workspacenNoPublicIpBooleanpParameter (#28967)

Author: curiekim0

specification/databricks/resource-manager/Microsoft.Databricks/stable/2024-05-01/databricks.json

@@ -1187,9 +1187,6 @@
         }
       },
       "type": "object",
-      "required": [
-        "value"
-      ],
       "description": "The value which should be used for this field."
     },
     "WorkspaceCustomBooleanParameter": {