fix(client): reformat tokio dependency entry

crates/irtt-client/Cargo.toml

@@ -16,12 +16,7 @@ irtt-proto.workspace = true
 libc = { version = "0.2.189", optional = true }
 socket2 = { version = "0.6.5", features = ["all"] }
 thiserror = "2.0.19"
-tokio = {
+tokio = { version = "1", default-features = false, features = ["rt", "net", "time", "sync"], optional = true}
-    version = "1",
-    default-features = false,
-    features = ["rt", "net", "time", "sync"],
-    optional = true,
-}
 
 [features]
 default = []