Fix ucx-py pin in raft-dask recipe (rapidsai#1396)

Update the ucx-py pinning for raft-dask 23.06

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

Approvers:
  - Corey J. Nolet (https://github.com/cjnolet)
  - Mark Sadang (https://github.com/msadang)

URL: rapidsai#1396

conda/recipes/raft-dask/conda_build_config.yaml

@@ -14,7 +14,7 @@ ucx_version:
   - ">=1.13.0,<1.15.0"
 
 ucx_py_version:
-  - "0.31.*"
+  - "0.32.*"
 
 cmake_version:
   - ">=3.23.1,!=3.25.0"