Get a resource by identifier

curl --request GET \
  --url https://api.ctrlplane.dev/api/v1/workspaces/{workspaceId}/resources/identifier/{identifier}

{
  "id": "<string>",
  "identifier": "<string>",
  "workspaceId": "<string>",
  "providerId": "<string>",
  "provider": {
    "id": "<string>",
    "name": "<string>",
    "workspaceId": "<string>"
  },
  "variables": [
    {
      "id": "<string>",
      "key": "<string>",
      "value": "<string>"
    }
  ],
  "metadata": {}
}