OZG-4606 add api dependency

user-manager-server/pom.xml

@@ -118,6 +118,10 @@
 			<groupId>io.quarkus</groupId>
 			<artifactId>quarkus-grpc</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>io.quarkus</groupId>
+			<artifactId>quarkus-grpc-api</artifactId>
+		</dependency>
 
 		<!-- Logging -->
 		<dependency>