Update cuco git tag (#213)

This PR fetches the new `pair_contains` API in `cuco`.

No breaking changes are involved thus the PR should be safe to merge directly.

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

Approvers:
  - Vyas Ramasubramani (https://github.com/vyasr)

URL: #213

rapids-cmake/cpm/versions.json

@@ -44,7 +44,7 @@
       "version" : "0.0.1",
       "git_shallow" : false,
       "git_url" : "https://github.com/NVIDIA/cuCollections.git",
-      "git_tag" : "55029034c3f82bca36148c9be29941b37492394d"
+      "git_tag" : "3a49fc7143366e33334ce25846fb9854fbdc99f3"
     }
   }
 }