Release V3.0.0

[blogh]

Breaking change:

• Attr 18.1 is required

Change log:

• Add more information to the header (instance and process stats) (Tests by @Krysztophe)
• Add the --refresh option to the cli to set the refresh rate (change refresh rate via argument on startup #293) (Requested by @crysman)
• Add the --debug-file option to enable logging (still mostly unused)
• Add hints about runtime disabled features (MacOS: can't get CPU/mem stats #300) (Reported by @rutchkiwi)
• The SUPERUSER privilege is not longer required (Run pg_activity without a superuser privilege #277) (Requested by @Raymondmax)

Bug fixes:

• Add the --no-walreceiver to disable wal receiver stats for Aurora (Traceback: Function pg_stat_get_wal_receiver() is currently not supported in Aurora #301) (Reported by @grutz)
• Add the --no-tempfiles option to disable temp file statistics and add it to the --rds command (psycopg2.errors.InsufficientPrivilege error when using an installation from github #303) (Reported by @adityabaradwaj)
• Fix server information queries for v12/v13 (Reported and fixed by @kmoppel-cognite)
• Fix InvalidTextRepresentation errors (Encoding bug, still not out of the woods ... #275) (Fix proposed by @ssharunas)
• Fix sort order for parallel queries (processes sort with parallel worker is broken #297) (Reported and fixed by @kmoppel-cognite)
• Doc fixes and packaging improvements (@kianmeng, @Vampouille)