[test] Fix status of new test

Follow up to https://dart-review.googlesource.com/c/sdk/+/445000

Change-Id: Ic6a1964def67f27f4cac062370c0c7384a55bd71
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/445160
Auto-Submit: Liam Appelbe <[email protected]>
Reviewed-by: Slava Egorov <[email protected]>
Commit-Queue: Slava Egorov <[email protected]>

Author: liamappelbe

tests/ffi/ffi.status

@@ -61,6 +61,7 @@ isolate_group_bound_callback_test: Skip # gen_snapshot requires experimental-sha
 isolate_group_bound_captured_local_test: Skip # gen_snapshot requires experimental-shared-data flag
 isolate_group_bound_init_test: Skip # gen_snapshot requires experimental-shared-data flag
 isolate_group_bound_send_test: Skip # gen_snapshot requires experimental-shared-data flag
+many_listener_callbacks_test/*: Skip # Test harness doesn't support multitest with Fuchsia
 native_assets/*: Skip # Source not available in the emulator
 run_isolate_group_run_test: Skip # gen_snapshot requires experimental-shared-data flag
 static_checks/*: SkipByDesign # Expecting compile time failures in multi tests doesn't work on the Fuchsia test runner.