Mark //src/go/tests/apps as flaky
Mark //src/go/tests/apps as flaky

See b/128660997.

Change-Id: Id355b5c5a4ab4a5df4177457ec1adeebedf2002e
GitOrigin-RevId: 1f5e66be34015f34797cb255de84b9deed0e6e27

googlecloudrobotics/core,googlecloudrobotics/core,googlecloudrobotics/core