Log Message:
databases/py-peewee: Update to 3.2.2.

3.2.2
- Added support for passing Model classes to the returning() method
  when you intend to return all columns for the given model.
- Fixed a bug when using user-defined sequences, and the underlying
  sequence already exists.
- Added drop_sequences parameter to drop_table() method which allows
  you to conditionally drop any user-defined sequences when dropping
  the table.

3.2.1
- If both mysql-python and pymysql libraries are installed, Peewee
  will use pymysql by default.
- Added new module playhouse.mysql_ext which includes
  MySQLConnectorDatabase, a database implementation that works with
  the mysql-connector driver.
- Added new field to ColumnMetadata class which captures a database
  column's default value. ColumnMetadata is returned by
  Database.get_columns().
- Added documentation on making Peewee async.

3.2.0
- Potentially backwards-incompatible change: Field.coerce renamed to
  Field.adapt.

3.1.6
- Added rekey() method to SqlCipher database for changing encryption
  key and documentation for set_passphrase() method.
- Added convert_values parameter to ArrayField constructor, which will
  cause the array values to be processed using the underlying
  data-type's conversion logic.
- Fixed unreported bug using TimestampField with sub-second
  resolutions.
- Fixed bug where options were not being processed when calling
  drop_table().
- Some fixes and improvements to signals extension.