Use correct babel transform for dynamic import in dependencies (facebook#7208)

Author: jamesknelson

packages/babel-preset-react-app/dependencies.js

@@ -142,7 +142,7 @@ module.exports = function(api, opts) {
       require('@babel/plugin-syntax-dynamic-import').default,
       isEnvTest &&
         // Transform dynamic import to require
-        require('babel-plugin-transform-dynamic-import').default,
+        require('babel-plugin-dynamic-import-node'),
     ].filter(Boolean),
   };
 };