Upgrade libfuzzer-sys to 0.4.7 am: 9b2cd52a95

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libfuzzer-sys/+/2945321

Change-Id: Iaf16780b2d948f55185c01e990d0eb306c83d480
Signed-off-by: Automerger Merge Worker <[email protected]>