update API reports for TypeScript 5.6

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

plugins/techdocs-node/report.api.md

@@ -3,8 +3,6 @@
 > Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
 
 ```ts
-/// <reference types="node" />
-
 import { CompoundEntityRef } from '@backstage/catalog-model';
 import { Config } from '@backstage/config';
 import { DiscoveryService } from '@backstage/backend-plugin-api';
@@ -100,12 +98,10 @@ export const getLocationForEntity: (
 // @public @deprecated (undocumented)
 export const getMkDocsYml: (
   inputDir: string,
-  options?:
-    | {
-        name?: string | undefined;
-        mkdocsConfigFileName?: string | undefined;
-      }
-    | undefined,
+  options?: {
+    name?: string;
+    mkdocsConfigFileName?: string;
+  },
 ) => Promise<{
   path: string;
   content: string;