build: Bump blocking from 1.3.1 to 1.5.1

Bumps [blocking](https://github.com/smol-rs/blocking) from 1.3.1 to 1.5.1.
- [Release notes](https://github.com/smol-rs/blocking/releases)
- [Changelog](https://github.com/smol-rs/blocking/blob/master/CHANGELOG.md)
- [Commits](https://github.com/smol-rs/blocking/compare/v1.3.1...v1.5.1)

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

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

vmm/Cargo.toml

@@ -23,7 +23,7 @@ arc-swap = "1.5.1"
 arch = { path = "../arch" }
 bitflags = "2.4.1"
 block = { path = "../block" }
-blocking = { version = "1.3.0", optional = true }
+blocking = { version = "1.5.1", optional = true }
 cfg-if = "1.0.0"
 clap = "4.4.7"
 devices = { path = "../devices" }