docs: Update Deployment Guide with azd version note

Added note for azd version 1.23.9 regarding preflight configuration.

Author: Prajwal-Microsoft

docs/DeploymentGuide.md

@@ -273,6 +273,11 @@ azd auth login --tenant-id <tenant-id>
 
 ### 4.2 Start Deployment
 
+**NOTE:** If you are running the latest azd version (version 1.23.9), please run the following command. 
+```bash 
+azd config set provision.preflight off
+```
+
 ```shell
 azd up
 ```