fix(api): restore async execute route test mock

Add the missing AuthType export to the hybrid auth mock so the async execution route test exercises the 202 queueing path instead of crashing with a 500 in CI.

Author: test

apps/sim/app/api/workflows/[id]/execute/route.async.test.ts

@@ -18,6 +18,7 @@ const {
 }))
 
 vi.mock('@/lib/auth/hybrid', () => ({
+  AuthType: { SESSION: 'session', API_KEY: 'api_key', INTERNAL_JWT: 'internal_jwt' },
   checkHybridAuth: mockCheckHybridAuth,
 }))