This follows from T338231: [Event Platform] mw-page-content-change-enrich should (re)produce kafka keys
We should partition the topic and spread the load across multiple brokers. See https://phabricator.wikimedia.org/T345657#9146529. Will require coordination with SRE to alter topic config https://wikitech.wikimedia.org/wiki/Kafka/Administration#Alter_topic_partitions_number
Success criteria
- the mediawiki.page_content_change.v1 topic is partitioned
Dependencies
- we will need SRE help to alter the topic partitions number
- Flink producer has been updated and deployed with T338231: [Event Platform] mw-page-content-change-enrich should (re)produce kafka keys