Adds spring-cloud-build runtime dependency

docker/spring-cloud-contract-stub-runner-docker/pom.xml

@@ -19,6 +19,12 @@
 
 	<dependencies>
 		<!-- Required, otherwise the docker image generation fails for GA -->
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-build</artifactId>
+			<version>${spring-cloud-build.version}</version>
+			<scope>runtime</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-contract-parent</artifactId>