Various fixes to the manifest

[vyasr]

This PR fixes a number of issues in the manifest:

• cudf's dependency on rmm was accidentally removed in devcontainer-utils and rapids-build-utils updates for DLFW #221. Since rmm is header-only I guess nobody noticed the issue since it doesn't increase build times and only shows up if you attempt to make local changes to rmm and test them in cudf.
• UCXX_ENABLE_PYTHON was removed in Separate libucxx build and ucxx build ucxx#257
• cuml depends on cuvs as of Migrate to use cuVS for vector search cuml#6085
• cugraph does not depend on cugraph-ops as of Remove CMake/C++ references to cugraph-ops cugraph#4744
• Many packages were relying on transitively getting rmm or raft as dependencies, which causes problems when the intermediate dependency is removed. Extra -D<package_name>_ROOT variables in the CMake configure don't cause any problems so I made everything explicit.