Update phpunit/phpunit requirement from ^9.5.26 to ^9.5.26 || ^10.0.0

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/main/ChangeLog-10.0.md)
- [Commits](https://github.com/sebastianbergmann/phpunit/compare/9.5.26...10.0.7

)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-type: direct:development
...

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