Add apex_available. am: 30971e606a am: f978313c50 am: 84edd76b73 am: 402dc4af73 am: 0092410044

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/combine/+/1874614

Change-Id: I31a6b2e4ac229345fbd5173223eb554d63f1f3a4