Fix more cjs-needing locations

Author: NullVoxPopuli

eslint.config.mjs

@@ -28,7 +28,7 @@ export default [
     ignores: [
       'tests/fixture/*',
       'tests/fixture-ts/*',
-      'files/ember-cli-build.js',
+      'files/ember-cli-build.cjs',
     ],
   },
 ];

files/_js_eslint.config.mjs

@@ -72,16 +72,7 @@ export default [
    * CJS node files
    */
   {
-    files: [
-      '**/*.cjs',
-      'config/**/*.js',
-      'testem.js',
-      'testem*.js',
-      '.prettierrc.js',
-      '.stylelintrc.js',
-      '.template-lintrc.js',
-      'ember-cli-build.js',
-    ],
+    files: ['**/*.cjs'],
     plugins: {
       n,
     },

files/_ts_eslint.config.mjs

@@ -92,16 +92,7 @@ export default ts.config(
    * CJS node files
    */
   {
-    files: [
-      '**/*.cjs',
-      'config/**/*.js',
-      'testem.js',
-      'testem*.js',
-      '.prettierrc.js',
-      '.stylelintrc.js',
-      '.template-lintrc.js',
-      'ember-cli-build.js',
-    ],
+    files: ['**/*.cjs'],
     plugins: {
       n,
     },

tests/default.test.mjs

@@ -131,7 +131,7 @@ describe('basic functionality', function () {
     },
   },
   middleware: [
-    require(__dirname + '/testem-proxy.js')('${appURL}')
+    require(__dirname + '/testem-proxy.cjs')('${appURL}')
   ],
 };
 `,