Bump gopkg.in/yaml.v2 from 2.2.7 to 2.2.8 (#2329)

Bump gopkg.in/yaml.v2 from 2.2.7 to 2.2.8 (#2329)

Bumps [gopkg.in/yaml.v2](https://github.com/go-yaml/yaml) from 2.2.7 to 2.2.8.
- [Release notes](https://github.com/go-yaml/yaml/releases)
- [Commits](https://github.com/go-yaml/yaml/compare/v2.2.7...v2.2.8)

---
updated-dependencies:
- dependency-name: gopkg.in/yaml.v2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>