v6.1.1

Change logs:

9bfbb68 Revert to Kotlin 1.8.10
e6eb235 Upgrade dependencies; prepare for release
25790c5 Optimise maybeIndex() in JsonPropertyAccessor
01e7091 GH-8638: Kafka: Send All Fails to Failure Channel
0350a64 Optimize synchronized in PartitionedDispatcher
1a8450b Fix DSL for inner bean names generation