Update the example

The current example doesn't work since it's missing the name of the
postgresql server and the disk size is invalid according to azure.

Author: p3ck

changelogs/fragments/20240305-update_postgresql_example.yml

@@ -0,0 +1,2 @@
+trivial:
+  - "Update example in roles/azure_manage_postgresql/README.md"

roles/azure_manage_postgresql/README.md

@@ -59,13 +59,14 @@ Example Playbook
     - hosts: localhost
       roles:
          - role: cloud.azure_ops.azure_manage_postgresql
+           azure_manage_postgresql_postgresql_name: postgresql-server
            azure_manage_postgresql_operation: "create"
            azure_manage_postgresql_region: "eastus"
            azure_manage_postgresql_resource_group: "postgresql-rg"
            azure_manage_postgresql_postgresql_backup_retention_days: 10
            azure_manage_postgresql_postgresql_admin_username: ansible
            azure_manage_postgresql_postgresql_admin_password: ansible-testing-123
-           azure_manage_postgresql_postgresql_storage_mb: 506895
+           azure_manage_postgresql_postgresql_storage_mb: 5120
            azure_manage_postgresql_postgresql_sku:
               name: B_Gen5_1
               tier: Basic
@@ -90,4 +91,4 @@ See [LICENCE](https://github.com/redhat-cop/cloud.azure_ops/blob/main/LICENSE) t
 Author Information
 ------------------
 
-- Ansible Cloud Content Team
+- Ansible Cloud Content Team