(AzureCXP) fixes MicrosoftDocs/azure-docs#107627

Updating the property `--public-network-access` to `--public-access` in az postgres flexible-server create cmdlet.

Author: Venkateshdodda-MSFT

articles/app-service/tutorial-java-tomcat-connect-managed-identity-postgresql-database.md

@@ -74,7 +74,7 @@ Follow these steps to create an Azure Database for Postgres in your subscription
        --location $LOCATION \
        --admin-user $POSTGRESQL_ADMIN_USER \
        --admin-password $POSTGRESQL_ADMIN_PASSWORD \
-       --public-network-access 0.0.0.0 \
+       --public-access 0.0.0.0 \
        --sku-name Standard_D2s_v3 
    ```