Install sanlock-python on jenkins slaves

Hi, I would like to remove an old hack in the test code that was put in place at a time when sanlock was not widely available on everyone's development machines. Since it is now installable on all supported platforms I would like to make it a BuildRequires and remove the hack. See the patch [1] here. In order for this patch to pass CI, I need those machines updated with the new BuildRequires: sanlock-python. Could you please install it? Thanks! Note that we do NOT need sanlock (the daemon). We just need the python module in order to satisfy imports. Thanks! -- Adam Litke