CosmosDb Java client and private endpoints

Created a private endpoint for my CosmosDb storage account and try to connect to it. Getting a ConnectTimeOutException..

```
io.netty.channel.ConnectTimeoutException: connection timed out: cosmos-account-41895-eastus.documents.azure.com/10.3.168.11:21226
```

If I try to connect to the storage account using the `azure cli` from the same machine, it works fine.

```
az cosmosdb sql database create --account-name cosmos-account-41895 --name testdb --resource-group rg-name
```

For context, I'm using the java library: com.azure:azure-cosmos:4.0.1-beta.1. Does the Java client support private endpoints yet?