Upgrade test dependencies

Author: olegz

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>4.1.0-SNAPSHOT</version>
+            <version>4.2.0-SNAPSHOT</version>
         </dependency>
         <!-- end Kafka -->
         <dependency>

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

@@ -28,21 +28,21 @@
 		 <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-stream</artifactId>
-            <version>4.1.0-SNAPSHOT</version>
+            <version>4.2.0-SNAPSHOT</version>
         </dependency>
         <!-- RabbitMQ - only needed if you intend to invoke via RabbitMQ -->
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-stream-binder-rabbit</artifactId>
-            <version>4.1.0-SNAPSHOT</version>
+            <version>4.2.0-SNAPSHOT</version>
         </dependency>
         <!-- end RabbitMQ -->
 
          <!-- Kafka - only needed if you intend to invoke via RabbitMQ -->
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-stream-binder-kafka</artifactId>
-            <version>4.1.0-SNAPSHOT</version>
+            <version>4.2.0-SNAPSHOT</version>
         </dependency>
         <!-- end Kafka -->
         <dependency>