Migrate to cargo_embargo. am: 38a285c91b am: 97160aa095 am: c739773b80

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/chrono/+/2853286

Change-Id: I8b0d2b24387ccbd1e39dbad008c0bf921fc05600
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>