Upgrade xml-rs to 0.8.19 am: bf78730a13 am: a2f0f479e5 am: ba70e8778f

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/xml-rs/+/2854949

Change-Id: I2955ea61f49e6aad8199512fc5597198626a6ab3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>