fix: use fixed version of postgres for local development

Resolves an issue which caused local Postgres instances to fail to start, due to Postgres 18 changes to how it handles PGDATA.

feat: Add local websocket proxy (#860)

fix: allow tool to be provided as a flag (#867)

feat: add website command (#856)

Use `nitric add website` to interactively add a new website to an existing project

fix: update to fixed version of cloud common code (#866)

ci: use ubuntu-latest for publish/release runner (#865)

fix: correctly serves websites on start/run (#863)

fix: stops process on service/website build errors (#861)

fix: removes beta providers preview flag (#862)

fix: removes beta providers preview flag message

fix: only show building websites message when required (#858)

fix: only show building websites when required