py-peewee: updated to 3.11.2

3.11.2
* Implement `hash` interface for `Alias` instances, allowing them to be used in
  multi-source queries.

3.11.1
* Fix bug in new `_pk` / `get_id()` implementation for models that explicitly
  have disabled a primary-key.

3.11.0
* Fixes 1991. This particular issue involves joining 3 models together in a
  chain, where the outer two models are empty. Previously peewee would make the
  middle model an empty model instance (since a link might be needed from the
  source model to the outermost model). But since both were empty, it is more
  correct to make the intervening model a NULL value on the foreign-key field
  rather than an empty instance.
* An unrelated fix came out of the work on 1991 where hashing a model whose
  primary-key happened to be a foreign-key could trigger the FK resolution
  query. This patch fixes the `Model._pk` and `get_id()` interfaces so they
  no longer introduce the possibility of accidentally resolving the FK.
* Allow `Field.contains()`, `startswith()` and `endswith()` to compare against
  another column-like object or expression.
* Workaround for MySQL prior to 8 and MariaDB handling of union queries inside
  of parenthesized expressions (like IN).
* Be more permissive in letting invalid values be stored in a field whose type
  is INTEGER or REAL, since Sqlite allows this.
* `TimestampField` resolution cleanup. Now values 0 *and* 1 will resolve to a
  timestamp resolution of 1 second. Values 2-6 specify the number of decimal
  places (hundredths to microsecond), or alternatively the resolution can still
  be provided as a power of 10, e.g. 10, 1000 (millisecond), 1e6 (microsecond).
* When self-referential foreign-keys are inherited, the foreign-key on the
  subclass will also be self-referential (rather than pointing to the parent
  model).
* Add TSV import/export option to the `dataset` extension.
* Add item interface to the `dataset.Table` class for doing primary-key lookup,
  assignment, or deletion.
* Extend the mysql `ReconnectMixin` helper to work with mysql-connector.
* Fix mapping of double-precision float in postgres schema reflection.
  Previously it mapped to single-precision, now it correctly uses a double.
* Fix issue where `PostgresqlExtDatabase` and `MySQLConnectorDatabase` did not
  respect the `autoconnect` setting.


(adam)