add runtime dependency on libcuvs in cuvs wheels (rapidsai#615)

`cuvs-cu{11,12}` wheels don't currently have a runtime dependency on `libcuvs-cu{11,12}`. They need one, for library-loading:

https://github.com/rapidsai/cuvs/blob/e9983e17408e6bec6f2558f9df49be97a7255417/python/cuvs/cuvs/__init__.py#L19-L25

This was missed in rapidsai#594. This PR adds it.

## Notes for Reviewers

Adding for searchability... this bug can result in issues like this at runtime when using `cuvs` installed from wheels:

> ImportError: libcuvs_c.so: cannot open shared object file: No such file or directory

Authors:
  - James Lamb (https://github.com/jameslamb)

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

URL: rapidsai#615

dependencies.yaml

@@ -132,6 +132,7 @@ files:
     extras:
       table: project
     includes:
+      - depends_on_libcuvs
       - depends_on_pylibraft
       - run_py_cuvs
   py_test_cuvs:

python/cuvs/pyproject.toml

@@ -32,6 +32,7 @@ license = { text = "Apache 2.0" }
 requires-python = ">=3.10"
 dependencies = [
     "cuda-python",
+    "libcuvs==25.2.*,>=0.0.0a0",
     "numpy>=1.23,<3.0a0",
     "pylibraft==25.2.*,>=0.0.0a0",
 ] # This list was generated by `rapids-dependency-file-generator`. To make changes, edit ../../dependencies.yaml and run `rapids-dependency-file-generator`.