Log Message:
databases/ruby-pg: update to 1.4.5

1.4.5 (2022-11-17)

* Return the libpq default port when blank in conninfo. #492

* Add PG::DEF_PGPORT constant and use it in specs. #492

* Fix name resolution when empty or `nil` port is given.

* Update error codes to PostgreSQL-15.

* Update Windows fat binary gem to PostgreSQL-15.1 AND OpenSSL-1.1.1s.