Upgrade rust/crates/protobuf-codegen to 2.16.2 am: 72fec014a8 am: 27a01c2804

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/protobuf-codegen/+/1361179

Change-Id: I0d2e660fd93ef3ddba63e46b3ac369996c151669