Bump symfony/routing from 6.4.6 to 6.4.7 in /app

Bumps [symfony/routing](https://github.com/symfony/routing) from 6.4.6 to 6.4.7.
- [Release notes](https://github.com/symfony/routing/releases)
- [Changelog](https://github.com/symfony/routing/blob/7.0/CHANGELOG.md)
- [Commits](symfony/routing@v6.4.6...v6.4.7)

---
updated-dependencies:
- dependency-name: symfony/routing
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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