build(deps-dev): bump ergebnis/license from 2.5.0 to 2.6.0

Bumps [ergebnis/license](https://github.com/ergebnis/license) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/ergebnis/license/releases)
- [Changelog](https://github.com/ergebnis/license/blob/main/CHANGELOG.md)
- [Commits](ergebnis/license@2.5.0...2.6.0)

---
updated-dependencies:
- dependency-name: ergebnis/license
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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