Fix cargo_pkg_version am: 7fa3c8b871

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/serde/+/2745940

Change-Id: Ib9d39b4ee3dcf9a34b0babd00139326cbeac295e
Signed-off-by: Automerger Merge Worker <[email protected]>