message: build: Add io-util tokio feature to main deps
diff: @@ -70,7 +70,7 @@ serialport = { version = "4.0.1", optional = true }
  # Other platforms are not affected by the feature changes.
  hidapi = { version = "1.3.0", default-features = false, features = ["linux-static-hidraw", "illumos-static-libusb"], optional = true }
  wasm-bindgen = { version = "0.2.78", optional = true }
  -tokio = { version = "1.14.0", features = ["sync", "macros"] }
  +tokio = { version = "1.14.0", features = ["sync", "macros", "io-util"] }
  async-stream = "0.3.2"
  prost = "0.9.0"
  tokio-util = "0.6.9"
  @@ -82,7 +82,7 @@ getset = "0.1.2"
  rusty-xinput = "1.2.0"
  [dev-dependencies]
  -tokio = { version = "1.14.0", features = ["io-std", "io-util"] }
  +tokio = { version = "1.14.0", features = ["io-std"] }
  tracing-log = { version = "0.1.2", features = ["env_logger"] }
  [lib]
  