Update slim/slim requirement from ^4.12 to ^4.13

Updates the requirements on [slim/slim](https://github.com/slimphp/Slim) to permit the latest version.
- [Release notes](https://github.com/slimphp/Slim/releases)
- [Changelog](https://github.com/slimphp/Slim/blob/4.x/CHANGELOG.md)
- [Commits](slimphp/Slim@4.12.0...4.13.0)

---
updated-dependencies:
- dependency-name: slim/slim
  dependency-type: direct:production
...

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

composer.json

@@ -42,7 +42,7 @@
         "ramsey/uuid": "^4.2.3",
         "slim/console": "^0.1.0",
         "slim/psr7": "^1.6",
-        "slim/slim": "^4.12",
+        "slim/slim": "^4.13",
         "slim/twig-view": "^3.3",
         "spatie/schema-org": "^3.9",
         "tebazil/db-seeder": "^1.0",