Remove unsupported versions from suggestion

Author: netpok

composer.json

@@ -43,7 +43,7 @@
         "vimeo/psalm": "^3.12"
     },
     "suggest": {
-        "illuminate/events": "Required for automatic helper generation (^6|^7|^8|^9)."
+        "illuminate/events": "Required for automatic helper generation (^8|^9)."
     },
     "minimum-stability": "dev",
     "prefer-stable": true,