OZG-5681 setup primary bean

ozg-cloud-spring-boot-starter/src/main/java/de/ozgcloud/client/autoconfigure/OzgCloudClientAutoConfiguration.java

@@ -12,6 +12,7 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Import;
+import org.springframework.context.annotation.Primary;
 
 import de.ozgcloud.apilib.alfa.AlfaService;
 import de.ozgcloud.apilib.alfa.CommandAlfaService;
@@ -168,6 +169,7 @@ public class OzgCloudClientAutoConfiguration {
 	}
 
 	@Bean
+	@Primary
 	@ConditionalOnProperty("ozgcloud.command-manager.address")
 	OzgCloudCommandService grpcOzgCloudCommandService(CommandMapper commandMapper, OzgCloudCallContextProvider contextProvider) {
 		var channel = ManagedChannelBuilder.forTarget(commandManagerProperties.getAddress()).usePlaintext().build();