fix: 修复数据流转rest-api选择凭据类型，输入用户名和密码点击保存，再点进去数据未保存

@@ -83,7 +83,11 @@
     if (credentials) {
       for (let i in credentials) Reflect.set(credentialsFile, i, credentials[i]);
     }
-    setFieldsValue(value);
+    setFieldsValue({
+      ...value,
+      username: value?.credentials.username,
+      password: value?.credentials.password,
+    });
     setFieldsValue({
       type: credentials.type,
     });