Minimum reproduction repository for GraphQL ObjectTypes not being registered if they are not included in a query or mutation

Steps taken:

1. Globally install the Nest CLI (v10.1.10)
2. Create a new Nest project: nest new
3. Add the GraphQL packages: npm i @nestjs/graphql @nestjs/apollo @apollo/server graphql
4. Import the GraphQLModule in the AppModule
5. Create a healthcheck resolver (there must be at least one query)
6. Create the Foo ObjectType and a FooResolver resolver
7. Run the app to generate the schema
8. Observe that the schema does not include the Foo type