Bumps [System.Device.Gpio](https://github.com/dotnet/iot) from 1.4.0 to 1.5.0.
- [Release notes](https://github.com/dotnet/iot/releases)
- [Commits](https://github.com/dotnet/iot/compare/1.4...1.5)

---
updated-dependencies:
- dependency-name: System.Device.Gpio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
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