[DO NOT MERGE] Update winscope proxy on R am: 50775a7444

Original change: https://android-review.googlesource.com/c/platform/development/+/2071347

Change-Id: I0fe351a9d58f3eb7658f2e37940bcf8271a84922
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>