Log Message:
databases/ruby-sequel: update to 5.67.0

5.67.0 (2023-04-01)

* Fix dumping of string column sizes in the schema dumper on MSSQL
  (jeremyevans) (#2013)

* Improve dumping of tables in non-default schemas in the schema_dumper
  extension (jeremyevans) (#2006)

* Make Database#{tables,views} support :qualify option on Microsoft SQL
  Server (jeremyevans)

* Avoid use of singleton classes for datasets instances on Ruby 2.4+
  (jeremyevans) (#2007)

* Deprecate registering datasets extensions using an object other than a
  module (jeremyevans)

* Add set_literalizer extension, for treating set usage in datasets similar
  to array usage (jeremyevans) (#1997)