Bump the php-dependencies group with 2 updates

Bumps the php-dependencies group with 2 updates: [spatie/laravel-schedule-monitor](https://github.com/spatie/laravel-schedule-monitor) and [spatie/laravel-sitemap](https://github.com/spatie/laravel-sitemap).


Updates `spatie/laravel-schedule-monitor` from 3.8.2 to 3.9.0
- [Release notes](https://github.com/spatie/laravel-schedule-monitor/releases)
- [Changelog](https://github.com/spatie/laravel-schedule-monitor/blob/main/CHANGELOG.md)
- [Commits](spatie/laravel-schedule-monitor@3.8.2...3.9.0)

Updates `spatie/laravel-sitemap` from 7.3.0 to 7.3.1
- [Release notes](https://github.com/spatie/laravel-sitemap/releases)
- [Changelog](https://github.com/spatie/laravel-sitemap/blob/main/CHANGELOG.md)
- [Commits](spatie/laravel-sitemap@7.3.0...7.3.1)

---
updated-dependencies:
- dependency-name: spatie/laravel-schedule-monitor
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: php-dependencies
- dependency-name: spatie/laravel-sitemap
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: php-dependencies
...

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