docs: new version in Matching Kafka Versions (#1846)

Author: sebastian-alfers

docs/src/main/paradox/home.md

@@ -14,6 +14,7 @@ See all releases in [GitHub releases](https://github.com/akka/alpakka-kafka/rele
 
 | Kafka client                                                               | Scala Versions   | Akka version    | Alpakka Kafka Connector
 |----------------------------------------------------------------------------|------------------|-----------------|-------------------------
+| 3.9.0                                                                      | 3.3, 2.13        | 2.10.5+         | [release 7.0.3](https://github.com/akka/alpakka-kafka/releases/tag/v7.0.3)
 | 3.7.1                                                                      | 3.3, 2.13        | 2.10.5+         | [release 7.0.2](https://github.com/akka/alpakka-kafka/releases/tag/v7.0.2)
 | 3.7.1                                                                      | 3.3, 2.13        | 2.10.0-2.10.4   | [release 7.0.0](https://github.com/akka/alpakka-kafka/releases/tag/v7.0.0)
 | 3.7.0                                                                      | 3.3, 2.13        | 2.9.0+          | [release 6.0.0](https://github.com/akka/alpakka-kafka/releases/tag/v6.0.0)