Bump org.springframework.cloud:spring-cloud-stream-binder-kafka

Bumps [org.springframework.cloud:spring-cloud-stream-binder-kafka](https://github.com/spring-cloud/spring-cloud-stream) from 4.2.0-SNAPSHOT to 4.2.3.
- [Release notes](https://github.com/spring-cloud/spring-cloud-stream/releases)
- [Commits](https://github.com/spring-cloud/spring-cloud-stream/commits/v4.2.3)

---
updated-dependencies:
- dependency-name: org.springframework.cloud:spring-cloud-stream-binder-kafka
  dependency-version: 4.2.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

spring-cloud-function-samples/function-sample-cloudevent-rsocket/pom.xml

@@ -34,7 +34,7 @@
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-stream-binder-kafka</artifactId>
-            <version>4.2.0-SNAPSHOT</version>
+            <version>4.2.3</version>
         </dependency>
         <!-- end Kafka -->
         <dependency>

spring-cloud-function-samples/function-sample-cloudevent-stream/pom.xml

@@ -42,7 +42,7 @@
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-stream-binder-kafka</artifactId>
-            <version>4.2.0-SNAPSHOT</version>
+            <version>4.2.3</version>
         </dependency>
         <!-- end Kafka -->
         <dependency>