fix: the require format for react scripts task

Author: bahmutov

plugins/cra-v3/index.js

@@ -1,8 +1,8 @@
 const filePreprocessor = require('./file-preprocessor')
 
 module.exports = (on, config) => {
+  require('@cypress/code-coverage/task')(on, config)
   on('file:preprocessor', filePreprocessor(config))
-  on('task', require('@cypress/code-coverage/task')(on, config))
   // IMPORTANT to return the config object
   // with the any changed environment variables
   return config