cargo: bump microbit-v2 in /src/bare-metal/microcontrollers/examples

Bumps [microbit-v2](https://github.com/nrf-rs/microbit) from 0.15.1 to 0.16.0.
- [Release notes](https://github.com/nrf-rs/microbit/releases)
- [Changelog](https://github.com/nrf-rs/microbit/blob/main/CHANGELOG.md)
- [Commits](nrf-rs/microbit@v0.15.1...v0.16.0)

---
updated-dependencies:
- dependency-name: microbit-v2
  dependency-version: 0.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/bare-metal/microcontrollers/examples/Cargo.lock

@@ -9,7 +9,7 @@ publish = false
 [dependencies]
 cortex-m-rt = "0.7.5"
 embedded-hal = "1.0.0"
-microbit-v2 = "0.15.1"
+microbit-v2 = "0.16.0"
 nrf52833-hal = "0.19.0"
 nrf52833-pac = { version = "0.12.2", features = ["rt"] }
 panic-halt = "1.0.0"