refactor: 交易状态增加等待扣款状态

根据微信最新的业务变动增加 “ACCEPT” 字段用来标记“已接收，等待扣款”状态

payment-spring-boot-autoconfigure/src/main/java/cn/felord/payment/wechat/enumeration/TradeState.java

@@ -67,4 +67,10 @@ public enum TradeState {
      * @since 1.0.0.RELEASE
      */
     PAYERROR,
+    /**
+     * 已接收，等待扣款
+     *
+     * @since 1.0.6.RELEASE
+     */
+    ACCEPT,
 }