Migrate to cargo_embargo. am: 8d81961642 am: 4c8bbe6739 am: 5ce2c388ba

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/pin-project-internal/+/2829873

Change-Id: I1b944d6f2116889f990eac5e2a87f55d856f5ce8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>