[BUG] Java cudf build fails in non-conda environment with unable to find rapids-cmake

[jlowe]

Describe the bug
Building the cudf Java jar in the non-conda Docker environment fails with the following error:

-- CPM: adding package cuco@0 (0d602ae21ea4f38d23ed816aa948453d97b2ee4e)
CMake Error at build/_deps/cuco-src/CMakeLists.txt:25 (include):
  include could not find requested file:

    rapids-cmake


CMake Error at build/_deps/cuco-src/CMakeLists.txt:26 (include):
  include could not find requested file:

    rapids-cpm


CMake Error at build/_deps/cuco-src/CMakeLists.txt:27 (include):
  include could not find requested file:

    rapids-cuda


CMake Error at build/_deps/cuco-src/CMakeLists.txt:28 (include):
  include could not find requested file:

    rapids-export


CMake Error at build/_deps/cuco-src/CMakeLists.txt:29 (include):
  include could not find requested file:

    rapids-find


CMake Error at build/_deps/cuco-src/CMakeLists.txt:33 (rapids_cuda_init_architectures):
  Unknown CMake command "rapids_cuda_init_architectures".

This appears to have been triggered by #8476.

Steps/Code to reproduce bug
Follow the steps in java/ci/README.md to build outside of the conda environment in the Docker container

Expected behavior
The Java non-conda environment build succeeds.