Bump wp-cli/eval-command from 2.2.7 to 2.2.8 (#912)

Bumps [wp-cli/eval-command](https://github.com/wp-cli/eval-command) from 2.2.7 to 2.2.8.
- [Release notes](https://github.com/wp-cli/eval-command/releases)
- [Commits](wp-cli/eval-command@v2.2.7...v2.2.8)

---
updated-dependencies:
- dependency-name: wp-cli/eval-command
  dependency-version: 2.2.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]