Fix kafka integretion tests, fix conflict between port used by embedd…

…ed kafka and gRPC server

pom.xml

@@ -141,6 +141,18 @@
 			<version>1.40.1</version>
 		</dependency>
 
+		<dependency>
+			<groupId>io.grpc</groupId>
+			<artifactId>grpc-testing</artifactId>
+			<version>1.51.0</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 		<!-- Sleuth for distributed tracing -->
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>

src/test/resources/application-kafka.yaml

@@ -0,0 +1,3 @@
+grpc:
+  server:
+    port: 9099 # default gRPC server port is used by embedded kafka