Update smol requirement from 1 to 2

Updates the requirements on [smol](https://github.com/smol-rs/smol) to permit the latest version.
- [Release notes](https://github.com/smol-rs/smol/releases)
- [Changelog](https://github.com/smol-rs/smol/blob/master/CHANGELOG.md)
- [Commits](smol-rs/smol@v1.0.0...v2.0.0)

---
updated-dependencies:
- dependency-name: smol
  dependency-type: direct:production
...

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

Cargo.toml

@@ -30,7 +30,7 @@ flume = { version = "0.11", default-features = false }
 futures-lite = "2.0.0"
 once_cell = "1"
 pin-project-lite = "0.2.10"
-smol = "1"
+smol = "2"
 
 # rewrite dependencies to use the this version of async-task when running tests
 [patch.crates-io]