confluent-kafka-python v2.5.3

v2.5.3 is a maintenance release with the following fixes and enhancements:

Fixes

• Fix an assert being triggered during push telemetry call when no metrics matched on the client side.
• Minor enhancement to JSONDeserializer to retrieve schema from Schema Registry if not provided

confluent-kafka-python is based on librdkafka v2.5.3, see the librdkafka release notes for a complete list of changes, enhancements, fixes and upgrade considerations.