Migrate to cargo_embargo. am: 6192ef513e am: fba37d6f1c am: a93ff63cdd

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/config/+/2822893

Change-Id: Ib662bf46478dc30df293df71e5d668429b483ce6
Signed-off-by: Automerger Merge Worker <[email protected]>