fix: update enum doc

Author: ioito

pkg/cloudprovider/waf.go

@@ -159,7 +159,7 @@ type SWafStatement struct {
 	// 是否取反操作, 仅对Azure生效
 	Negation bool `nullable:"false" list:"user"`
 	// 操作类型
-	// enum: EQ, NE, LE, LT, GE, GT
+	// enum: ["EQ", "NE", "LE", "LT", "GE", "GT"]
 	Operator TWafOperator `width:"20" charset:"ascii" nullable:"false" list:"user"`
 	// 匹配字段
 	// enmu: Body, JsonBody, Query, Method, Header, UriPath, PostArgs, Cookie