perf: Lazy-load public-api dependencies to reduce baseline memory usage (#5049)

* refactor: Load swagger and openapi dependencies conditionally

* disable public api in tests to reduce heal usage

* update the link and text in SettingsApiView when swagger ui is disabled

packages/cli/src/config/index.ts

@@ -19,6 +19,9 @@ if (inE2ETests) {
 		EXTERNAL_FRONTEND_HOOKS_URLS: '',
 		N8N_PERSONALIZATION_ENABLED: 'false',
 	};
+}
+if (inTest) {
+	process.env.N8N_PUBLIC_API_DISABLED = 'true';
 } else {
 	dotenv.config();
 }