feat: Create TOTP node (#5901)

* ✨ Create TOTP node

* ♻️ Apply feedback

* ♻️ Recreate `pnpm-lock.yaml`

* ♻️ Apply Giulio's feedback

* 🚧 WIP node tests

* ✅ Finish node test setup

* ⏪ Restore test command

* ⚡ linter fixes, tweaks

* ♻️ Address Michael's feedback

---------

Co-authored-by: Michael Kret <michael.k@radency.com>

packages/nodes-base/test/nodes/FakeCredentialsMap.ts

@@ -0,0 +1,22 @@
+import { IDataObject } from 'n8n-workflow';
+
+// If your test needs data from credentials, you can add it here.
+// as JSON.stringify({ id: 'credentials_ID', name: 'credentials_name' }) for specific credentials
+// or as 'credentials_type' for all credentials of that type
+// expected keys for credentials can be found in packages/nodes-base/credentials/[credentials_type].credentials.ts
+export const FAKE_CREDENTIALS_DATA: IDataObject = {
+	[JSON.stringify({ id: '20', name: 'Airtable account' })]: {
+		apiKey: 'key456',
+	},
+	airtableApi: {
+		apiKey: 'key123',
+	},
+	n8nApi: {
+		apiKey: 'key123',
+		baseUrl: 'https://test.app.n8n.cloud/api/v1',
+	},
+	totpApi: {
+		label: 'GitHub:john-doe',
+		secret: 'BVDRSBXQB2ZEL5HE',
+	},
+};