Update zerodahero/laravel-workflow requirement from ^4.0|^5.0 to ^6.0.0

---
updated-dependencies:
- dependency-name: zerodahero/laravel-workflow
  dependency-type: direct:production
...

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

Author: dependabot[bot]

composer.json

@@ -19,7 +19,7 @@
         "php": "^8.2",
         "illuminate/contracts": "^10.0||^11.0",
         "spatie/laravel-package-tools": "^1.16",
-        "zerodahero/laravel-workflow": "^4.0|^5.0"
+        "zerodahero/laravel-workflow": "^6.0.0"
     },
     "require-dev": {
         "larastan/larastan": "^2.9",