SQLite 3.53.0

SQLite 3.53.0 SQLite 3.52.0 was withdrawn so this is a pretty big release with a whole lot of accumulated user-facing and internal improvements. Some that stood out to me: ALTER TABLE can now add and remove NOT NULL and CHECK constraints - I've previously used my own sqlite-utils transform() method for this. New json_array_insert() function and its jsonb equivalent. Significant improvements to CLI mode, including result formatting. The result formatting improvements come from a new library, the…