Migrate to cargo_embargo. am: 8d81961642

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

Change-Id: I561c73e4a39f400e58a29b0f1a76da11fd512e55
Signed-off-by: Automerger Merge Worker <[email protected]>