1.31.0

• Added official Postgres 18 support.
• Removed graphlib backport (no longer needed in supported Python versions).
• Improved documentation for column kwargs.
• Updated README to mention other parts of the Piccolo ecosystem (thanks to @sinisaos for this).
• Table instances can now be compared using the == operator, and will return True if they have the same primary key value (thanks to @aarcex3 and @Skelmis for this).
• Fixed missing import for auto migrations when tables use LazyTableReference (thanks to @sinisaos for this).
• Improved docs for the auto generated primary key (thanks to @badlydrawnrob for this).
• Improved Table._table_str (this is most obvious in the playground, where the table definitions printed out now show more information - thanks to @badlydrawnrob for raising this issue).
• Fixed a bug with ModelBuilder when using Array columns with choices defined.
• add_m2m now returns the id of the joining table row, to match the docs (thanks to @diklios5768 for reporting this).
• Improved the docs for UUID columns (what the UUID4 default value does).
• Moved connection pooling to its own page in the docs.
• Improved the on_conflict clause - a target must be specified if using DO UPDATE (thanks to @mafuyuuu1 for raising this issue, and @sinisaos for this fix).
• Changed Esmerald to Ravyn in the ASGI templates (thanks to @sinisaos for this).
• Fixed a bug with auto migrations when changing a column to a foreign key - an exception was being raised (thanks to @gsavchuk for raising this issue and @sinisaos for this fix).
• Array(Numeric()) columns now work with SQLite (thanks to @sinisaos for this).
• UUID columns now use the built-in gen_random_uuid() function in Postgres to generate a default value, instead of using the uuid-ossp extension (thanks to @sinisaos for this).