Update CHANGELOG for 2.10.1 SR changes (confluentinc#1999)

* Update CHANGELOG for 2.10.1 SR changes

* Minor cleanup

* Move to 2.10.1

Author: rayokota

CHANGELOG.md

@@ -6,12 +6,16 @@ v2.10.1 is a maintenance release with the following fixes
 
 - Handled `None` value for optional `ctx` parameter in  `ProtobufDeserializer` (#1939)
 - Handled `None` value for optional `ctx` parameter in  `AvroDeserializer` (#1973)
+- Handled ctx=None for AvroDeserializer and ProtobufDeserializer in __call__ (#1974)
+- Fix possible NPE in CSFLE executor (#1980)
+- Support for schema id in header (#1978)
+- Raise an error if Protobuf deprecated format is specified (#1986)
+- Implement Async Schema Registry client (#1965)
 
 confluent-kafka-python v2.10.1 is based on librdkafka v2.10.1, see the
 [librdkafka release notes](https://github.com/confluentinc/librdkafka/releases/tag/v2.10.1)
 for a complete list of changes, enhancements, fixes and upgrade considerations.
 
-
 ## v2.10.0
 
 v2.10.0 is a feature release with the following fixes and enhancements: