v2.15.0

This is a feature release:

Enhancements

• Add support for ResourceTransactionalID in AdminClient ACL APIs (#1407)
• Add support for union-of-pools/auto pool mapping for Schema Registry (#1519)

Fixes

• Handle non-HTTP errors during retries (#1563)
• ErrMsgTimedOut is now counted as a timeout error (#1422, Marco Ferrer (@marcoferrer))