Fix scoping on create()

`e.alias` pushes the update expression to the outer with block.
Necessary because `update` can't be scoped within a `select`
(like I previously thought).

Author: CarsonF

src/components/user/unavailability/unavailability.edgedb.repository.ts

@@ -31,7 +31,7 @@ export class UnavailabilityEdgeDBRepository
         }));
         const query = e.select(inserted, (u) => ({
           ...this.hydrate(u),
-          updatedUser, // Attach to query, so it is executed.
+          updatedUser: e.alias(updatedUser), // Attach to query, so it is executed.
         }));
         return await this.db.run(query);
       }