chore(deps): Bump io.confluent:kafka-protobuf-serializer (#870)

Bumps [io.confluent:kafka-protobuf-serializer](https://github.com/confluentinc/schema-registry) from 7.6.2 to 7.7.0.
- [Commits](https://github.com/confluentinc/schema-registry/commits/v7.7.0)

---
updated-dependencies:
- dependency-name: io.confluent:kafka-protobuf-serializer
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

dependencies.gradle

@@ -42,7 +42,7 @@ ext {
     kafkaClientsVersion = '3.7.1'
     kafkaStreamsVersion = '3.7.1'
 
-    kafkaProtobufSerializerVersion = '7.6.2'
+    kafkaProtobufSerializerVersion = '7.7.0'
 
     jacksonVersion = '2.17.2'
     jacksonDatatypeProtobufVersion = '0.9.15'