List all collections

Example response

{
  "collections": [
    {
      "created_at": "2023-08-06T20:46:56.815552Z",
      "description": "A collection description",
      "id": "pixxel-dd2",
      "license": "proprietary",
      "links": [
        {
          "href": "https://example.com",
          "rel": "self",
          "title": "Example Link Title",
          "type": "application/json"
        }
      ],
      "providers": [
        {
          "description": "Pixxel is a space data company",
          "name": "Pixxel",
          "roles": [
            "producer"
          ],
          "url": "https://pixxel.space"
        }
      ],
      "stac_version": "0.1.0",
      "title": "Pixxel-DD01",
      "type": "Collection",
      "updated_at": "2023-08-06T20:46:56.815552Z"
    }
  ]
}