ci: Expand ESLint to tests in BE packages (no-changelog) (#6147)

* 🔧 Adjust base ESLint config

* 🔧 Adjust `lint` and `lintfix` in `nodes-base`

* 🔧 Include `test` and `utils` in `nodes-base`

* 📘 Convert JS tests to TS

* 👕 Apply lintfixes

packages/workflow/test/ExpressionExtensions/ExpressionExtension.test.ts

@@ -2,6 +2,8 @@
  * @jest-environment jsdom
  */
 
+/* eslint-disable n8n-local-rules/no-interpolation-in-regular-string */
+
 import { extendTransform } from '@/Extensions';
 import { joinExpression, splitExpression } from '@/Extensions/ExpressionParser';
 import { evaluate } from './Helpers';