Updated changelog

Author: pranavrth

CHANGELOG.md

@@ -1,13 +1,13 @@
 # Confluent's Python client for Apache Kafka
 
-## v2.5.1
+## v2.6.1
 
-v2.5.1 is a maintenance release with the following fixes and enhancements:
+v2.6.1 is a maintenance release with the following fixes and enhancements:
 
  - Added an example for OAUTH OIDC producer with support for confluent cloud (#1769, @sarwarbhuiyan)
 
-confluent-kafka-python is based on librdkafka v2.5.1, see the
-[librdkafka release notes](https://github.com/confluentinc/librdkafka/releases/tag/v2.5.1)
+confluent-kafka-python is based on librdkafka v2.6.1, see the
+[librdkafka release notes](https://github.com/confluentinc/librdkafka/releases/tag/v2.6.1)
 for a complete list of changes, enhancements, fixes and upgrade considerations.