[eslint config] [base] [patch] add gulpfile.*.js to import/no-extraneous-dependencies

Otherwise e.g. gulpfile.babel.js won't be matched

Author: davidkna

packages/eslint-config-airbnb-base/rules/imports.js

@@ -80,6 +80,7 @@ module.exports = {
         '**/webpack.config.*.js', // webpack config
         '**/rollup.config.js', // rollup config
         '**/gulpfile.js', // gulp config
+        '**/gulpfile.*.js', // gulp config
         '**/Gruntfile', // grunt config
       ],
       optionalDependencies: false,