Upgrade rust/crates/libfuzzer-sys to 0.4.2 am: 577945a102 am: 6d1535b6bc am: 456a892a9b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libfuzzer-sys/+/1742518

Change-Id: I05ceae5ae9a7e71d59681ca8e7fd7c3937e063e1