remove google pubsub v2 compatibility

Author: kainxspirits

Diff for: composer.json

@@ -22,7 +22,7 @@
         "ext-json": "*",
         "illuminate/queue": "5.7.* | 5.8.* | ^6.0 | ^7.0 | ^8.0 | ^9.0| ^10.0 | ^11.0 | ^12.0",
         "illuminate/support": "5.7.* | 5.8.* | ^6.0 | ^7.0 | ^8.0 | ^9.0| ^10.0 | ^11.0 | ^12.0",
-        "google/cloud-pubsub": "^1.1 | ^2.10",
+        "google/cloud-pubsub": "^1.1",
         "ramsey/uuid": "^2.0|^3.0|^4.0"
     },
     "require-dev": {