Update Durable Functions Java quickstart guide w/Cosmos DB warning

Cosmos DB bindings are not supported on Java with the v4 preview bundles. Adding a warning in this quickstart to make developers aware of this.

Author: cgillum

articles/azure-functions/durable/quickstart-java.md

@@ -127,6 +127,9 @@ Add a `host.json` file to your project directory. It should look similar to the
 
 It's important to note that only the Azure Functions v4 _Preview_ bundle currently has the necessary support for Durable Functions for Java.
 
+> [!WARNING]
+> Be aware that the Azure Functions v4 preview bundles do not yet support Cosmos DB bindings for Java function apps. For more information, see [Azure Cosmos DB trigger and bindings reference documentation](../functions-bindings-cosmosdb-v2.md?tabs=in-process%2Cextensionv4&pivots=programming-language-java#install-bundle).
+
 Add a `local.settings.json` file to your project directory. You should have the connection string of your Azure Storage account configured for `AzureWebJobsStorage`:
 
 ```json