fix: OBS-419 - netbox-diode-plugin: atomic transaction

[mfiedorowicz]

Payloads used for testing:

• successful atomic transaction:

  {
  "change_set_id": "1a6bbc49-6144-442b-b46c-e3fbef7a016c",
  "change_set": [
  {
    "change_id": "d4a86df7-4f7a-4f5c-8a47-b9dfe72363fe",
    "change_type": "create",
    "object_version": null,
    "object_type": "dcim.site",
    "object_id": null,
    "data": {
      "name": "undefined",
      "slug": "undefined"
    }
  },
  {
    "change_id": "a5b4d886-bb65-463e-a95b-bb76bf0be860",
    "change_type": "create",
    "object_version": null,
    "object_type": "dcim.manufacturer",
    "object_id": null,
    "data": {
      "name": "undefined",
      "slug": "undefined"
    }
  },
  {
    "change_id": "ade69e9b-afcc-45ab-a516-9cfb0dbfcdbe",
    "change_type": "create",
    "object_version": null,
    "object_type": "dcim.devicerole",
    "object_id": null,
    "data": {
      "name": "undefined",
      "slug": "undefined",
      "color": "ffc107"
    }
  },
  {
    "change_id": "28a5cce5-1444-464e-bb64-727b930c7f0a",
    "change_type": "create",
    "object_version": null,
    "object_type": "dcim.devicetype",
    "object_id": null,
    "data": {
      "model": "undefined",
      "slug": "undefined",
      "manufacturer": {"name": "undefined"}
    }
  },
  {
    "change_id": "165586e5-5b0c-4865-81fb-ef5e59a8a97c",
    "change_type": "create",
    "object_version": null,
    "object_type": "dcim.device",
    "object_id": null,
    "data": {
      "name": "router01",
      "slug": "router01",
      "site": {"name": "undefined"},
      "device_type": {"model": "undefined"},
      "role": {"name": "undefined"}
    }
  }
  ]
  }

• transaction rolled back due to validation errors (role undefined-2 doesn't exist):

  {
  "change_set_id": "1a6bbc49-6144-442b-b46c-e3fbef7a016c",
  "change_set": [
  {
    "change_id": "d4a86df7-4f7a-4f5c-8a47-b9dfe72363fe",
    "change_type": "create",
    "object_version": null,
    "object_type": "dcim.site",
    "object_id": null,
    "data": {
      "name": "undefined-2",
      "slug": "undefined-2"
    }
  },
  {
    "change_id": "165586e5-5b0c-4865-81fb-ef5e59a8a97c",
    "change_type": "create",
    "object_version": null,
    "object_type": "dcim.device",
    "object_id": null,
    "data": {
      "name": "router02",
      "slug": "router02",
      "site": {
        "name": "undefined"
      },
      "device_type": {
        "model": "undefined"
      },
      "role": {
        "name": "undefined-2"
      }
    }
  }
  ]
  }

[linear[bot]]

OBS-419 Fix atomic transactions in the apply-change-set endpoint

As we're depending on the order of changes to commit provided in the change set, we need to run serializers validation after we `save()` each changes within the atomic transaction.