databases/rubygem-pg_query: update to 2.2.1
2.2.1 2023-01-20
Detect tables used in the query of a PREPARE statement (#273) Expose recursive walk functionality via walk! (#268) Retain schema in name when parsing out functions (#272)
https://github.com/pganalyze/pg_query/blob/main/CHANGELOG.md
(cherry picked from commit d96b9e0f17a2c54b7ad5e72d55f22abe2681bf90)