Update proxy-host-object.json

Signed-off-by: Zoey <[email protected]>

Author: Zoey2936

backend/schema/components/proxy-host-object.json

@@ -43,8 +43,7 @@
 			"$ref": "../common.json#/properties/domain_names"
 		},
 		"forward_host": {
-			"type": "string",
-			"pattern": "^(([^.]+\\.)+[^.]+)|(\\[[0-9a-f:]+\\])$"
+			"type": "string"
 		},
 		"forward_port": {
 			"type": "integer",