refactor: Lint for no interpolation in regular string (#5060) (no-changelog)

* ✨ Create rule `no-interpolation-in-regular-string`

* 👕 Enable rule

* ⚡ Run rule (no issues) and add exception

* ⚡ Simplify regex

To account for expressions and to make it less expensive

packages/@n8n_io/eslint-config/base.js

@@ -341,6 +341,8 @@ const config = (module.exports = {
 
 		'n8n-local-rules/no-unneeded-backticks': 'error',
 
+		'n8n-local-rules/no-interpolation-in-regular-string': 'error',
+
 		// ******************************************************************
 		//                    overrides to base ruleset
 		// ******************************************************************