fixing the build errors

Author: Sophia Tevosyan

client/src/main/java/com/microsoft/durabletask/DurableTaskGrpcClientFactory.java

@@ -14,6 +14,6 @@ private DurableTaskGrpcClientFactory() {
     }
 
     public static DurableTaskClient getClient(int port, String defaultVersion) {
-        return portToClientMap.computeIfAbsent(port, DurableTaskGrpcClient::new);
+        return portToClientMap.computeIfAbsent(port, p -> new DurableTaskGrpcClient(p, defaultVersion));
     }
 }