Bump illuminate/database from 6.11.0 to 6.20.16 in /lumen (#4)

Bumps [illuminate/database](https://github.com/illuminate/database) from 6.11.0 to 6.20.16.
- [Release notes](https://github.com/illuminate/database/releases)
- [Commits](illuminate/database@v6.11.0...v6.20.16)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]