Bump spatie/laravel-ignition from 1.6.4 to 1.7.0 in /graph-tutorial

Bumps [spatie/laravel-ignition](https://github.com/spatie/laravel-ignition) from 1.6.4 to 1.7.0.
- [Release notes](https://github.com/spatie/laravel-ignition/releases)
- [Changelog](https://github.com/spatie/laravel-ignition/blob/main/CHANGELOG.md)
- [Commits](spatie/laravel-ignition@1.6.4...1.7.0)

---
updated-dependencies:
- dependency-name: spatie/laravel-ignition
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]