Update dependency wpilib to v2022.4.1.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
wpilib	==2022.4.1.5 -> ==2022.4.1.6

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Release Notes

robotpy/robotpy-wpilib

### [`v2022.4.1.6`](https://togithub.com/robotpy/robotpy-wpilib/compare/2022.4.1.5...2022.4.1.6) [Compare Source](https://togithub.com/robotpy/robotpy-wpilib/compare/2022.4.1.5...2022.4.1.6)

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