refactor(core): Reorganize error hierarchy in cli package (no-changelog) (#7839)

Ensure all errors in `cli` inherit from `ApplicationError` to continue
normalizing all the errors we report to Sentry

Follow-up to: https://github.com/n8n-io/n8n/pull/7820

packages/cli/src/errors/not-string-array.error.ts

@@ -0,0 +1,7 @@
+import { ApplicationError } from 'n8n-workflow';
+
+export class NotStringArrayError extends ApplicationError {
+	constructor(env: string) {
+		super(`${env} is not a string array.`);
+	}
+}