Merge tag 'sparks-3.13.4' into develop

3.13.4
Don't use PGHOST/PGPORT if on localhost, it just fails with `postgres` user on Linux.
Don't require the local Linux user (debian/ubuntu) to have special PG permissions. Just use `postgres`, wherever we are local or not.
version bump for 3.13.5
Merge branch 'release/3.13.5'