fix: fix bug in eslint-env migration

it wasn't working for dotfiles and some source code types

Author: jedwards1211

fixtures/async-throttle/upgrade-snapshot/.babelrc.cjs

@@ -1,4 +1,3 @@
-/* eslint-env node, es2018 */
 module.exports = function (api) {
   const base = require('@jcoreio/toolchain-esnext/.babelrc.cjs')(api)
   return {

fixtures/async-throttle/upgrade-snapshot/.mocharc.cjs

@@ -1,4 +1,3 @@
-/* eslint-env node, es2018 */
 const base = require('@jcoreio/toolchain-mocha/.mocharc.cjs')
 module.exports = {
   ...base,

fixtures/async-throttle/upgrade-snapshot/eslint.config.cjs

@@ -22,7 +22,7 @@ module.exports = defineConfig([
     },
   },
   {
-    files: ['test/clearConsole.js'],
+    files: ['test/configure.js', 'test/clearConsole.js'],
     languageOptions: {
       globals: globals.node,
     },

fixtures/async-throttle/upgrade-snapshot/test/configure.js

@@ -1,5 +1,3 @@
-/* eslint-env node */
-
 import chai from 'chai'
 import chaiAsPromised from 'chai-as-promised'
 chai.use(chaiAsPromised)