Update Rust crate smol to 1.3.0 (#14)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

async-vfs-os/Cargo.toml

@@ -15,7 +15,7 @@ async-vfs = { path = "../async-vfs", version = "^0.56.0" }
 cfg-if = "1.0.0"
 futures-lite = "1.12.0"
 async-std = { version = "1.6.0", features = [ "attributes" ], optional = true }
-smol = { version = "1.2.5", optional = true }
+smol = { version = "1.3.0", optional = true }
 smol-potat = { version = "1.1.2", optional = true }
 tokio = { version = "1.13.0", optional = true, features = ["full", "test-util"] }
 async-compat = { version = "0.2.1", optional = true }