Merge "Update TEST_MAPPING" am: 12b7cf3db7 am: a081c0878e

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/grpcio-sys/+/2125937

Change-Id: I5d6c00ee0dd375a3f31ac1c5c47b2d78f84c7db0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>