nswgeo 0.6.0

• Updated suburbs dataset source (fetched from ArcGIS server).
• Updated postcodes dataset. The new version uses 2021 ABS boundaries and has some changes in processing.
• Updated PHN boundaries.
• Updated LHD boundaries to use new official data source. Note lhd_name now includes the string "Local Health District" at the end of each. If using {cartographer}, the old names will continue to work as the registration provides aliases for compatibility.
• Update postcode-LHD concordance. Note that the lhd_name column has changed as with LHD boundaries. The precision of FRAC_INCLUDED has been reduced.