build(deps): update usb-device requirement from 0.2 to 0.3

Updates the requirements on [usb-device](https://github.com/mvirkkunen/usb-device) to permit the latest version.
- [Release notes](https://github.com/mvirkkunen/usb-device/releases)
- [Changelog](https://github.com/rust-embedded-community/usb-device/blob/master/CHANGELOG.md)
- [Commits](rust-embedded-community/usb-device@v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: usb-device
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -19,7 +19,7 @@ cortex-m = "0.7"
 cortex-m-rt = { version = "0.7", features = ["device"] }
 stm32f0xx-hal = { version = "0.18", features = ["rt", "stm32f072", "stm32-usbd"] }
 panic-halt = "0.2"
-usb-device= "0.2"
+usb-device= "0.3"
 cortex-m-rtic = "1.0"
 systick-monotonic = "1.0"
 keyberon = { git = "https://github.com/borisfaure/keyberon", branch = "main" }