build: update devdependency semver to ~5.7.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
semver	devDependencies	minor	~5.5.0 -> ~5.7.0

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Release Notes

npm/node-semver

### [`v5.7.1`](https://togithub.com/npm/node-semver/compare/v5.7.0...v5.7.1) [Compare Source](https://togithub.com/npm/node-semver/compare/v5.7.0...v5.7.1) ### [`v5.7.0`](https://togithub.com/npm/node-semver/compare/v5.6.0...v5.7.0) [Compare Source](https://togithub.com/npm/node-semver/compare/v5.6.0...v5.7.0) ### [`v5.6.0`](https://togithub.com/npm/node-semver/compare/v5.5.1...v5.6.0) [Compare Source](https://togithub.com/npm/node-semver/compare/v5.5.1...v5.6.0)

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