Migrate to cargo_embargo. am: 4a9384f6a9 am: 275124f2f9 am: c95e38efbf

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/pathdiff/+/2824493

Change-Id: I9ebf9cc9404d55b3d9b7795fe49a16da55ccf9c6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>