the target for installing helm to the local host-specific tools cache and a few other targets are using the tools cache directory and depend on it implicitly. This change is a preparation for making this dependency explicit by adding a new target for creating the tools cache directory that can be use as a target prerequisite in subsequent changes. Signed-off-by: Michael Adam <obnox@samba.org> Co-authored-by: Travis Nielsen <tnielsen@redhat.com>