make: version bump mediawiki-event-utilities.
Bug: T345806
Version bump mediawiki-event-utilities to 1.3.3.
This version introduces support for producing Kafka messages with a record key. This will allowed partitioning Kafka topics with message ordering preserved. The logic has been implemented in the upstream Java code, and the resulting record serializer instantiation is transparent to Python code. This changes introduces no overhead to the Python process.
Kafka message keys must be declared in the stream configuration (see added unit test for an example).