fix: fix eslint errors for wdio plugin

Author: haoqunjiang

packages/@vue/cli-plugin-e2e-webdriverio/generator/template/tests/e2e/_eslintrc.js

@@ -6,6 +6,8 @@ module.exports = {
     mocha: true
   },
   rules: {
+    'class-methods-use-this': 'off',
+    'max-len': 'off',
     strict: 'off'
   }
 }