Marks Mac_arm64_mokey run_debug_test_android to be flaky (#177385)

<!-- meta-tags: To be used by the automation script only, DO NOT MODIFY.
{
  "name": "Mac_arm64_mokey run_debug_test_android"
}
-->
Issue link: https://github.com/flutter/flutter/issues/177384

Co-authored-by: Camille Simon <43054281+camsim99@users.noreply.github.com>

.ci.yaml

diff --git a/.ci.yaml b/.ci.yaml
index 5acae4b..05174dc 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -4949,6 +4949,7 @@
 
   # mac mokey test
   - name: Mac_arm64_mokey run_debug_test_android
+    bringup: true # Flaky https://github.com/flutter/flutter/issues/177384
     recipe: devicelab/devicelab_drone
     presubmit: false
     runIf: