Bump illuminate/database from 5.8.36 to 6.20.12

Bumps [illuminate/database](https://github.com/illuminate/database) from 5.8.36 to 6.20.12.
- [Release notes](https://github.com/illuminate/database/releases)
- [Commits](illuminate/database@v5.8.36...v6.20.12)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -21,7 +21,7 @@
         "psr/container": "^1.0",
         "slim/slim": "^3.8",
         "slim/twig-view": "^2.2",
-        "illuminate/database": "^5.4",
+        "illuminate/database": "^6.20",
         "respect/validation": "^1.1",
         "slim/csrf": "^0.8.1",
         "slim/flash": "^0.2.0",