build(deps): update async-io requirement from 1.3 to 2.0

Updates the requirements on [async-io](https://github.com/smol-rs/async-io) to permit the latest version.
- [Release notes](https://github.com/smol-rs/async-io/releases)
- [Changelog](https://github.com/smol-rs/async-io/blob/master/CHANGELOG.md)
- [Commits](smol-rs/async-io@v1.3.0...v1.13.0)

---
updated-dependencies:
- dependency-name: async-io
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -49,7 +49,7 @@ default-members = [
 [workspace.dependencies]
 anyhow = { version = "1", default-features = false }
 assert_matches = { version = "1.5.0", default-features = false }
-async-io = { version = "1.3", default-features = false }
+async-io = { version = "2.0", default-features = false }
 aya = { path = "aya", version = "0.11.0", default-features = false }
 aya-bpf = { path = "bpf/aya-bpf", default-features = false }
 aya-log = { path = "aya-log", default-features = false }