fix: 修改版本

package.json

 {
     "name": "panda-xform",
-    "version": "2.7.1",
-    "description": "2.7.1: 下拉框问题",
+    "version": "2.7.4",
+    "description": "2.7.4: 更换版本",
     "keywords": [
         "panda-xform"
     ],
@@ -32,7 +32,7 @@
         "antd": "4.20.7",
         "antd-img-crop": "^3.14.1",
         "form-render": "1.14.7",
-        "fr-generator": "2.8.4",
+        "fr-generator": "2.8.3",
         "http-proxy-middleware": "^1.0.6",
         "moment": "^2.29.1",
         "qrcode.react": "^3.1.0",