Bump cuco version to fetch stream-ordered allocator (#929)

This PR updates the cuco version to the latest to fetch the new stream ordered allocator.

Authors:
  - Yunsong Wang (https://github.com/PointKernel)

Approvers:
  - Kyle Edwards (https://github.com/KyleFromNVIDIA)

URL: #929

Author: PointKernel

rapids-cmake/cpm/versions.json

@@ -23,7 +23,7 @@
       "git_shallow": false,
       "always_download": true,
       "git_url": "https://github.com/NVIDIA/cuCollections.git",
-      "git_tag": "d36905c69ce02d74abdd31dc864ce3e1ffc5a7db"
+      "git_tag": "3b9873ada51835f61b73c90ec4efa74996b74e96"
     },
     "rapids_logger": {
       "version": "0.2.3",