Skip test.java.util.TestFormatter on gcstress debug config am: bfd5c475a2 am: 1a83d5fdfa

Original change: https://android-review.googlesource.com/c/platform/art/+/2975493

Change-Id: I6b5b298f26a68c49a6e6135726952be4244797d1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>