Migrate to cargo_embargo. am: 888635dbe0 am: 1715e253c5

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/serde-xml-rs/+/2832452

Change-Id: Ic4ac61250d66b7a027dc54071676a05fb30ff556
Signed-off-by: Automerger Merge Worker <[email protected]>