techdocs-backend: remove unnecessary export of CachedEntityLoaderOptions

The CachedEntityLoaderOptions type is only used internally by
CachedEntityLoader and is never imported by any other file.

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

plugins/techdocs-backend/src/service/CachedEntityLoader.ts

@@ -25,7 +25,7 @@ import {
 } from '@backstage/catalog-model';
 import { CatalogService } from '@backstage/plugin-catalog-node';
 
-export type CachedEntityLoaderOptions = {
+type CachedEntityLoaderOptions = {
   catalog: CatalogService;
   cache: CacheService;
 };