Mark ab/6881855 as merged am: 2e060e3448 am: 5f36290b11

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/rust/crates/protobuf-codegen/+/13112937

Change-Id: I4befaedd5a0a23d43676e437a26189d23621e720