Migrate to cargo_embargo. am: 865991ca32 am: ba148f0e3e am: afb4826c1b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/annotate-snippets/+/2796413

Change-Id: I279073a7f7204019f3370dd298e3feebf7c22f55
Signed-off-by: Automerger Merge Worker <[email protected]>