Bump phpmyadmin/sql-parser from 5.5.0 to 5.6.0

Bumps [phpmyadmin/sql-parser](https://github.com/phpmyadmin/sql-parser) from 5.5.0 to 5.6.0.
- [Release notes](https://github.com/phpmyadmin/sql-parser/releases)
- [Changelog](https://github.com/phpmyadmin/sql-parser/blob/master/CHANGELOG.md)
- [Commits](phpmyadmin/sql-parser@5.5.0...5.6.0)

---
updated-dependencies:
- dependency-name: phpmyadmin/sql-parser
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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