Merge "debuggerd: Use libprocessgroup to unfreeze" into main am: 58e219c1 am: 6a734e6b

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3395660



Change-Id: I47ae7e388f0665f2637501f7d6a06980c1cab402
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>