build: bump vfio-bindings from 0.2.0 to 0.3.1 in /fuzz

Bumps [vfio-bindings](https://github.com/rust-vmm/vfio) from 0.2.0 to 0.3.1.
- [Release notes](https://github.com/rust-vmm/vfio/releases)
- [Commits](https://github.com/rust-vmm/vfio/commits/vfio-bindings-v0.3.1)

---
updated-dependencies:
- dependency-name: vfio-bindings
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

fuzz/Cargo.lock

@@ -430,7 +430,7 @@ dependencies = [
  "thiserror",
  "versionize",
  "versionize_derive",
- "vfio-bindings 0.3.1",
+ "vfio-bindings",
  "vfio-ioctls",
  "vfio_user",
  "vm-allocator",
@@ -692,12 +692,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "vfio-bindings"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a21f546f2bda37f5a8cfb138c87f95b8e34d2d78d6a7a92ba3785f4e08604a7"
-
 [[package]]
 name = "vfio-bindings"
 version = "0.3.1"
@@ -716,7 +710,7 @@ dependencies = [
  "kvm-bindings",
  "kvm-ioctls",
  "log",
- "vfio-bindings 0.2.0",
+ "vfio-bindings",
  "vm-memory",
  "vmm-sys-util",
 ]
@@ -732,7 +726,7 @@ dependencies = [
  "serde_derive",
  "serde_json",
  "thiserror",
- "vfio-bindings 0.3.1",
+ "vfio-bindings",
  "vm-memory",
  "vmm-sys-util",
 ]