Upgrade rust/crates/libfuzzer-sys to 0.4.0 am: d1325ea499 am: 4bc707d895

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libfuzzer-sys/+/1662761

Change-Id: I3a3a194697e3e886472a3aed09fc6779f0a5a84c