Update TEST_MAPPING am: 0c3c1d34a4 am: afa89d7e92 am: 63d6c607f0

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/grpcio-sys/+/2107322

Change-Id: I1c61dd302cb9de72cae9e88812f78c3230d07972
Signed-off-by: Automerger Merge Worker <[email protected]>