Bump the dependencies group with 2 updates (#1899)

* Bump the dependencies group with 2 updates

Bumps the dependencies group with 2 updates: [phpro/grumphp](https://github.com/phpro/grumphp) and [slevomat/coding-standard](https://github.com/slevomat/coding-standard).


Updates `phpro/grumphp` from 2.14.0 to 2.15.0
- [Release notes](https://github.com/phpro/grumphp/releases)
- [Commits](phpro/grumphp@v2.14.0...v2.15.0)

Updates `slevomat/coding-standard` from 8.20.0 to 8.21.1
- [Release notes](https://github.com/slevomat/coding-standard/releases)
- [Commits](slevomat/coding-standard@8.20.0...8.21.1)

---
updated-dependencies:
- dependency-name: phpro/grumphp
  dependency-version: 2.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dependencies
- dependency-name: slevomat/coding-standard
  dependency-version: 8.21.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>

* fix tests

---------

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

Author: dependabot[bot]