build(deps): bump the dependencies group with 1 update

Bumps the dependencies group with 1 update: [humbug/php-scoper](https://github.com/humbug/php-scoper).

- [Release notes](https://github.com/humbug/php-scoper/releases)
- [Commits](humbug/php-scoper@0.18.8...0.18.9)

---
updated-dependencies:
- dependency-name: humbug/php-scoper
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>