fix(deps): update rust crate tokio to 1.38.2 [security] (#7172)

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

Author: renovate[bot]

functions-templates/rust/hello-world/Cargo.toml

@@ -11,4 +11,4 @@ http = "0.2.9"
 lambda_runtime = "0.13.0"
 log = "0.4.17"
 simple_logger = "1.16.0"
-tokio = "1.27.0"
+tokio = "1.38.2"