Migrate to cargo_embargo. am: 566a910942 am: 3dddc42ca4 am: a84a9aa289

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/tinytemplate/+/2828073

Change-Id: I0dc7c27b3f6ba822a9628eb4e55edc1fbe5422d0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>