message: build: Update buttplug_derive rust edition
diff: @@ -7,7 +7,7 @@ license = "BSD-3-Clause"
  homepage = "http://buttplug.io"
  repository = "https://github.com/buttplugio/buttplug-rs.git"
  keywords = ["usb", "serial", "hardware", "bluetooth", "teledildonics"]
  -edition = "2018"
  +edition = "2021"
  [lib]
  proc-macro = true
  