cmake.py: include transitive run deps in CMAKE_PREFIX_PATH

- Run deps often need to be located during the build
- In cases like python-venv and python, where there's a direct build dep
  on both, but python-venv has a run dep on python, meaning we'd rather
  see python-venv in path before python topologically.

lib/spack/spack/build_systems/cmake.py

@@ -170,7 +170,7 @@ def get_cmake_prefix_path(pkg: spack.package_base.PackageBase) -> List[str]:
     edges = traverse.traverse_topo_edges_generator(
         traverse.with_artificial_edges([pkg.spec]),
         visitor=traverse.MixedDepthVisitor(
-            direct=dt.BUILD | dt.TEST, transitive=dt.LINK, key=traverse.by_dag_hash
+            direct=dt.BUILD | dt.TEST, transitive=dt.LINK | dt.RUN, key=traverse.by_dag_hash
         ),
         key=traverse.by_dag_hash,
         root=False,