build: bump libfuzzer-sys from 0.4.3 to 0.4.4 in /fuzz

Bumps [libfuzzer-sys](https://github.com/rust-fuzz/libfuzzer) from 0.4.3 to 0.4.4.
- [Release notes](https://github.com/rust-fuzz/libfuzzer/releases)
- [Changelog](https://github.com/rust-fuzz/libfuzzer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-fuzz/libfuzzer/compare/0.4.3...0.4.4)

---
updated-dependencies:
- dependency-name: libfuzzer-sys
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

fuzz/Cargo.lock

@@ -118,6 +118,9 @@ name = "cc"
 version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+dependencies = [
+ "jobserver",
+]
 
 [[package]]
 name = "cfg-if"
@@ -385,6 +388,15 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c8af84674fe1f223a982c933a0ee1086ac4d4052aa0fb8060c12c6ad838e754"
 
+[[package]]
+name = "jobserver"
+version = "0.1.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af25a77299a7f711a01975c35a6a424eb6862092cc2d6c72c4ed6cbc56dfc1fa"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "kvm-bindings"
 version = "0.5.0"
@@ -419,9 +431,9 @@ checksum = "8371e4e5341c3a96db127eb2465ac681ced4c433e01dd0e938adbef26ba93ba5"
 
 [[package]]
 name = "libfuzzer-sys"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "336244aaeab6a12df46480dc585802aa743a72d66b11937844c61bbca84c991d"
+checksum = "ae185684fe19814afd066da15a7cc41e126886c21282934225d9fc847582da58"
 dependencies = [
  "arbitrary",
  "cc",

fuzz/Cargo.toml

@@ -13,7 +13,7 @@ block_util = { path = "../block_util" }
 devices = { path = "../devices" }
 epoll = "4.3.1"
 libc = "0.2.132"
-libfuzzer-sys = "0.4.3"
+libfuzzer-sys = "0.4.4"
 micro_http = { git = "https://github.com/firecracker-microvm/micro-http", branch = "main" }
 once_cell = "1.13.1"
 qcow = { path = "../qcow" }