List volume tags

curl --request GET \
  --url https://api.gcore.com/cloud/v1/volumes/{project_id}/{region_id}/{volume_id}/metadata \
  --header 'APIKey: <api-key>'

{
  "count": 1,
  "results": [
    {
      "key": "my-tag",
      "read_only": false,
      "value": "my-tag-value"
    }
  ]
}