update-kwsys: Update repository URL

KWSys is now hosted on Kitware's GitLab instance.

Utilities/Scripts/update-kwsys.bash

@@ -7,7 +7,7 @@ shopt -s dotglob
 readonly name="KWSys"
 readonly ownership="KWSys Upstream <[email protected]>"
 readonly subtree="Source/kwsys"
-readonly repo="http://public.kitware.com/KWSys.git"
+readonly repo="https://gitlab.kitware.com/utils/kwsys.git"
 readonly tag="master"
 readonly shortlog=true
 readonly paths="