databases/py-peewee: Update to 1.0.5.

1.0.5
- Use same schema used for reflection in generated models.
- Preserve pragmas set on deferred Sqlite database if database is
  re-initialized without re-specifying pragmas.

1.0.4
- Fix bug creating model instances on Postgres when model does not
  have a primary key column.
- Extend postgresql reflection to support array types.

(fhajny)