Hi,
Since that link was posted there has been a change of poilcy.
Per NetApp Legal we were instructed to remove github access to all non-NetApp accounts.
We are going through the process now of code scanning a group of plugins, including the PostgreSQL plugin.
Once the code scan is complete the plugins will be posted for download on the NetApp toolchest.
This is currently expected to be completed in late May.
The code scanning process is done by a third party, and we are unable to influence the timeline.
Sorry for the inconveneince.
John