Bump league/csv from 9.25.0 to 9.26.0

Bumps [league/csv](https://github.com/thephpleague/csv) from 9.25.0 to 9.26.0.
- [Release notes](https://github.com/thephpleague/csv/releases)
- [Changelog](https://github.com/thephpleague/csv/blob/master/CHANGELOG.md)
- [Commits](thephpleague/csv@9.25.0...9.26.0)

---
updated-dependencies:
- dependency-name: league/csv
  dependency-version: 9.26.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]