固定package @tarojs/plugin-http的版本为4.1.1，避免一种出错场景：因安装需要，把package-lock.json删除后，重新安装依赖时，导致使用解析了plugin-http 4.1.4，即最新版本，在这种情况下会出现依赖冲突错误

package.json

@@ -51,7 +51,7 @@
     "@tarojs/components": "4.1.1",
     "@tarojs/helper": "4.1.1",
     "@tarojs/plugin-framework-react": "4.1.1",
-    "@tarojs/plugin-http": "^4.1.1",
+    "@tarojs/plugin-http": "4.1.1",
     "@tarojs/plugin-platform-alipay": "4.1.1",
     "@tarojs/plugin-platform-h5": "4.1.1",
     "@tarojs/plugin-platform-harmony-hybrid": "4.1.1",