Retrieve from system properties the version of the Mongo docker image…

… to be used for tests.

oak-run-commons/src/test/java/org/apache/jackrabbit/oak/index/indexer/document/flatfile/pipelined/PipelinedMongoConnectionFailureIT.java

@@ -48,10 +48,12 @@
 public class PipelinedMongoConnectionFailureIT {
     private static final Logger LOG = LoggerFactory.getLogger(PipelinedMongoConnectionFailureIT.class);
 
+    private static final String MONGO_VERSION = System.getProperty("mongo.version", "5.0");
+    private static final String MONGO_IMAGE = "mongo:" + MONGO_VERSION;
     private static final DockerImageName TOXIPROXY_IMAGE = DockerImageName.parse("ghcr.io/shopify/toxiproxy:2.6.0");
     // We cannot use the MongoDockerRule/MongoConnectionFactory because they don't allow customizing the docker network
     // used to launch the Mongo container.
-    private static final DockerImageName MONGODB_IMAGE = DockerImageName.parse("mongo:5.0");
+    private static final DockerImageName MONGODB_IMAGE = DockerImageName.parse(MONGO_IMAGE);
     private static final int MONGODB_DEFAULT_PORT = 27017;
 
     @Rule