Bump standard-version from 6.0.1 to 8.0.1

Bumps [standard-version](https://github.com/conventional-changelog/standard-version) from 6.0.1 to 8.0.1.
- [Release notes](https://github.com/conventional-changelog/standard-version/releases)
- [Changelog](https://github.com/conventional-changelog/standard-version/blob/master/CHANGELOG.md)
- [Commits](conventional-changelog/standard-version@v6.0.1...v8.0.1)

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Author: dependabot[bot]