Bump symfony/dotenv from 7.1.6 to 7.1.9

Bumps [symfony/dotenv](https://github.com/symfony/dotenv) from 7.1.6 to 7.1.9.
- [Release notes](https://github.com/symfony/dotenv/releases)
- [Changelog](https://github.com/symfony/dotenv/blob/7.1/CHANGELOG.md)
- [Commits](symfony/dotenv@v7.1.6...v7.1.9)

---
updated-dependencies:
- dependency-name: symfony/dotenv
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]