[Android] Disable flaky SetDefaultBackgroundColorOverride in 14 devices

Test is flaking on Android 14 devices.

Bug: 468408601
Change-Id: I421a81ecd7b4d0a0a1b0f8199986cb60bc1b60ce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7254091
Auto-Submit: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Joel Tan-Aristy <jtanaristy@google.com>
Commit-Queue: Joel Tan-Aristy <jtanaristy@google.com>
Cr-Commit-Position: refs/heads/main@{#1558346}
NOKEYCHECK=True
GitOrigin-RevId: af066a4227527de22015b759e5b7765a40b0d7e9