Update Rust crate tokio to 1.50.0 (#457)

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

Author: renovate[bot]

api/Cargo.lock

@@ -18,7 +18,7 @@ env_logger = "0.11.9"
 log = "0.4.29"
 moka = { version = "0.12.14", features = ["future"] }
 reqwest = { version = "0.13.2", features = ["json"] }
-tokio = { version = "1.49.0", features = ["sync"] }
+tokio = { version = "1.50.0", features = ["sync"] }
 async-trait = "0.1.89"
 futures = "0.3.32"
 toml = "1.0.3"