Bumped version to 9

Author: GrahamCampbell

composer.json

@@ -15,8 +15,8 @@
     ],
     "require": {
         "php": "^7.3",
-        "illuminate/contracts": "^8.0",
-        "illuminate/macroable": "^8.0"
+        "illuminate/contracts": "^9.0",
+        "illuminate/macroable": "^9.0"
     },
     "autoload": {
         "psr-4": {
@@ -28,7 +28,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "8.x-dev"
+            "dev-master": "9.x-dev"
         }
     },
     "config": {