Upgrade rust/crates/combine to 4.6.1 am: 057d758bdc am: 7ac9af49f2 am: 948a49fff9 am: 76e326df2b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/combine/+/1833383

Change-Id: I21be2b704ee9ddcc16b466fb26bb240e2f2e3779