Update D8 R8 to 8.4.4-dev am: 5cfcd8308f am: 9c4c298cca

Original change: https://android-review.googlesource.com/c/platform/prebuilts/r8/+/2894901

Change-Id: If8c5f76d9f90049b97bff01324a304fa8b365e3f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>