Allow tightenco/collect 9.0 (botman#1348)

Author: holtkamp

composer.json

@@ -15,7 +15,7 @@
     "require": {
         "php": ">=7.1",
         "symfony/http-foundation": "^2.8 || ^3.0 || ^4.0 || ^5.0 || ^6.0",
-        "tightenco/collect": "^5.0 || ^6.0 || ^7.0 || ^8.0",
+        "tightenco/collect": "^5.0 || ^6.0 || ^7.0 || ^8.0 || ^9.0",
         "opis/closure": "^2.3 || ^3.0",
         "mpociot/pipeline": "^1.0.2",
         "react/socket": "~1.0",