build(deps): bump vgrem/php-spo from 3.1.1 to 3.1.2

Bumps [vgrem/php-spo](https://github.com/vgrem/phpSPO) from 3.1.1 to 3.1.2.
- [Release notes](https://github.com/vgrem/phpSPO/releases)
- [Changelog](https://github.com/vgrem/phpSPO/blob/master/CHANGELOG.md)
- [Commits](vgrem/phpSPO@v3.1.1...v3.1.2)

---
updated-dependencies:
- dependency-name: vgrem/php-spo
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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