fix(graphql): id field non null (#8169)

Resolves #8172

## Summary

This PR addresses an issue where the`id` field in the GraphQL schema is
incorrectly marked as `nullable`. The change ensures that the `id` field
is set to non-nullable, which aligns with the expectation that every
resource should have a non-nullable ID, especially when using UUIDs as
primary keys.

### Changes
- Fix: Set the `id` field type to `GraphQLNonNull` for consistency in
the GraphQL schema.

Author: VictorWinberg

packages/graphql/src/schema/initCollections.ts

@@ -97,7 +97,7 @@ export function initCollections({ config, graphqlResult }: InitCollectionsGraphQ
     const whereInputFields = [...fields]
 
     if (!hasIDField) {
-      baseFields.id = { type: idType }
+      baseFields.id = { type: new GraphQLNonNull(idType) }
       whereInputFields.push({
         name: 'id',
         type: config.db.defaultIDType as 'text',