/usr/lib/ruby/vendor_ruby/sequel/extensions/ is in ruby-sequel 4.1.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/sequel/extensions/_pretty_table.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/arbitrary_servers.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/blank.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/columns_introspection.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/connection_validator.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/constraint_validations.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/core_extensions.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/core_refinements.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/date_arithmetic.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/empty_array_ignore_nulls.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/eval_inspect.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/filter_having.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/graph_each.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/hash_aliases.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/inflector.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/looser_typecasting.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/meta_def.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/migration.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/named_timezones.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/null_dataset.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pagination.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_array.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_array_ops.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_hstore.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_hstore_ops.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_inet.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_interval.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_json.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_json_ops.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_range.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_range_ops.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_row.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_row_ops.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/pretty_table.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/query.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/query_literals.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/ruby18_symbol_extensions.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/schema_caching.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/schema_dumper.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/select_remove.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/sequel_3_dataset_methods.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/server_block.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/set_overrides.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/split_array_nil.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/sql_expr.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/string_date_time.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/thread_local_timezones.rb
/usr/lib/ruby/vendor_ruby/sequel/extensions/to_dot.rb