curl --request PATCH \
  --url https://api.ubicloud.com/project/{project_id}/location/{location}/postgres/{postgres_database_reference}/firewall-rule/{firewall_rule_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "cidr": "<string>",
  "description": "<string>"
}
'

{
  "cidr": "<string>",
  "id": "frmjgkgbktw62k53005jpx8tt7",
  "description": "<string>",
  "port": 123
}