Update Rust crate oxide-tokio-rt to 0.1.6

Author: oxide-renovate[bot]

Cargo.toml

@@ -122,7 +122,7 @@ http-body-util = "0.1"
 rand = "0.10.1"
 backoff = "0.4"
 chrono = { version = "0.4.44", features = ["serde"] }
-oxide-tokio-rt = "0.1.5"
+oxide-tokio-rt = "0.1.6"
 oximeter = { git = "https://github.com/oxidecomputer/omicron", branch = "main"}
 oximeter-producer = { git = "https://github.com/oxidecomputer/omicron", branch = "main"}
 oxnet = { version = "0.1.5", default-features = false, features = ["schemars", "serde"] }