Update module github.com/coreos/go-semver to v0.3.1

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/coreos/go-semver	v0.3.0 -> v0.3.1

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Release Notes

coreos/go-semver (github.com/coreos/go-semver)

### [`v0.3.1`](https://togithub.com/coreos/go-semver/compare/v0.3.0...v0.3.1) [Compare Source](https://togithub.com/coreos/go-semver/compare/v0.3.0...v0.3.1)

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Configuration

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