Bump phpbench/phpbench from 1.2.5 to 1.2.6 (#436)

Bumps [phpbench/phpbench](https://github.com/phpbench/phpbench) from 1.2.5 to 1.2.6.
- [Release notes](https://github.com/phpbench/phpbench/releases)
- [Changelog](https://github.com/phpbench/phpbench/blob/master/CHANGELOG.md)
- [Commits](phpbench/phpbench@1.2.5...1.2.6)

---
updated-dependencies:
- dependency-name: phpbench/phpbench
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

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

Author: dependabot[bot]