fix seeds

core/racing/application/use-cases/UpdateLeagueMemberRoleUseCase.ts

@@ -26,7 +26,7 @@ export class UpdateLeagueMemberRoleUseCase {
   async execute(
     input: UpdateLeagueMemberRoleInput,
   ): Promise<
-    Result<void, ApplicationErrorCode<UpdateLeagueMemberRoleErrorCode, { message: string }>>
+    Result<UpdateLeagueMemberRoleResult, ApplicationErrorCode<UpdateLeagueMemberRoleErrorCode, { message: string }>>
   > {
     try {
       const memberships = await this.leagueMembershipRepository.getLeagueMembers(input.leagueId);
@@ -70,7 +70,11 @@ export class UpdateLeagueMemberRoleUseCase {
 
       await this.leagueMembershipRepository.saveMembership(updatedMembership);
 
-      return Result.ok(undefined);
+      const result: UpdateLeagueMemberRoleResult = {
+        membership: updatedMembership,
+      };
+
+      return Result.ok(result);
     } catch (error: unknown) {
       const message =
         error instanceof Error && typeof error.message === 'string'