Bump kvm-ioctls from 0.20.0 to 0.21.0 (#338)

Bumps [kvm-ioctls](https://github.com/rust-vmm/kvm) from 0.20.0 to 0.21.0.
- [Release notes](https://github.com/rust-vmm/kvm/releases)
- [Commits](rust-vmm/kvm@v0.20.0...kvm-ioctls-v0.21.0)

---
updated-dependencies:
- dependency-name: kvm-ioctls
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -75,7 +75,7 @@ gdbstub = { version = "0.7.5", optional = true }
 gdbstub_arch = { version = "0.3.1", optional = true }
 seccompiler = { version = "0.5.0", optional = true }
 kvm-bindings = { version = "0.11", features = ["fam-wrappers"], optional = true }
-kvm-ioctls = { version = "0.20", optional = true }
+kvm-ioctls = { version = "0.21", optional = true }
 mshv-bindings2 = { package="mshv-bindings", version = "=0.2.1", optional = true }
 mshv-ioctls2 = { package="mshv-ioctls",  version = "=0.2.1", optional = true}
 mshv-bindings3 = { package="mshv-bindings", version = "=0.3.2", optional = true }