text: Title: Allow to set batch size for db clean CLI
  Body: ### Body
  
  The db clean CLI was added in https://github.com/apache/airflow/pull/20838
  There is issue of timeout if the running the CLI on a very large table(s), ideally we should allow running the command with some kind of batch size flag that will split the work and execute it batch after batch.
  
  ### Committer
  
  - [x] I acknowledge that I am a maintainer/committer of the Apache Airflow project.