Fix for minor Soundcloud API change breaking the entire library

[aprilsbloom]

Hi,
Unsure if this is something on my end or not but whenever attempting to create a new instance of the SoundCloud class it errors. In the client ID validation you make a request for a track, but its trying to create a dataclass with a property the Soundcloud API doesn't seem to return anymore for the result (note the track_format part of the error). This simply removes that property as they don't seem to return it anymore. Probably a better way of doing this, i.e. marking the property as optional, but your call

Example response as of 20/03/24

{
    "artwork_url": null,
    "caption": null,
    "commentable": true,
    "comment_count": 6,
    "created_at": "2021-04-19T04:42:01Z",
    "description": "part 1 ends at 3:46",
    "downloadable": true,
    "download_count": 48,
    "duration": 673071,
    "full_duration": 673071,
    "embeddable_by": "all",
    "genre": "Electronic",
    "has_downloads_left": true,
    "id": 1032303631,
    "kind": "track",
    "label_name": null,
    "last_modified": "2021-10-07T06:29:07Z",
    "license": "all-rights-reserved",
    "likes_count": 57,
    "permalink": "wan-bushi-eurodance-vibes-part-123",
    "permalink_url": "https://soundcloud.com/7x11x13/wan-bushi-eurodance-vibes-part-123",
    "playback_count": 1065,
    "public": true,
    "publisher_metadata": {
        "id": 1032303631,
        "urn": "soundcloud:tracks:1032303631",
        "artist": "Wan Bushi",
        "contains_music": true
    },
    "purchase_title": null,
    "purchase_url": null,
    "release_date": null,
    "reposts_count": 2,
    "secret_token": null,
    "sharing": "public",
    "state": "finished",
    "streamable": true,
    "tag_list": "\"Wan Bushi\"",
    "title": "Wan Bushi - Eurodance Vibes (part 1+2+3)",
    "uri": "https://api.soundcloud.com/tracks/1032303631",
    "urn": "soundcloud:tracks:1032303631",
    "user_id": 790976431,
    "visuals": null,
    "waveform_url": "https://wave.sndcdn.com/TmINiENWxXHq_m.json",
    "display_date": "2021-04-19T06:21:38Z",
    "media": {
        "transcodings": [
            {
                "url": "https://api-v2.soundcloud.com/media/soundcloud:tracks:1032303631/67c6e3c2-ee14-406e-8aa0-39093726e4ef/stream/hls",
                "preset": "mp3_0_1",
                "duration": 673071,
                "snipped": false,
                "format": {
                    "protocol": "hls",
                    "mime_type": "audio/mpeg"
                },
                "quality": "sq"
            },
            {
                "url": "https://api-v2.soundcloud.com/media/soundcloud:tracks:1032303631/67c6e3c2-ee14-406e-8aa0-39093726e4ef/stream/progressive",
                "preset": "mp3_0_1",
                "duration": 673071,
                "snipped": false,
                "format": {
                    "protocol": "progressive",
                    "mime_type": "audio/mpeg"
                },
                "quality": "sq"
            },
            {
                "url": "https://api-v2.soundcloud.com/media/soundcloud:tracks:1032303631/0bac1826-d38b-4197-9101-304ec3950d50/stream/hls",
                "preset": "opus_0_0",
                "duration": 673039,
                "snipped": false,
                "format": {
                    "protocol": "hls",
                    "mime_type": "audio/ogg; codecs=\"opus\""
                },
                "quality": "sq"
            }
        ]
    },
    "station_urn": "soundcloud:system-playlists:track-stations:1032303631",
    "station_permalink": "track-stations:1032303631",
    "track_authorization": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJnZW8iOiJOWiIsInN1YiI6IiIsInJpZCI6IiIsImlhdCI6MTcxMDkyODUyNn0.gs1B-OhpCHNfiYCk0Sgr9Zd1MfYte_mJbzVlfEfYPo4",
    "monetization_model": "NOT_APPLICABLE",
    "policy": "ALLOW",
    "user": {
        "avatar_url": "https://i1.sndcdn.com/avatars-iCvxUcMwOpJWJnzH-jqr8TA-large.jpg",
        "first_name": "",
        "followers_count": 452,
        "full_name": "",
        "id": 790976431,
        "kind": "user",
        "last_modified": "2021-10-17T02:21:15Z",
        "last_name": "",
        "permalink": "7x11x13",
        "permalink_url": "https://soundcloud.com/7x11x13",
        "uri": "https://api.soundcloud.com/users/790976431",
        "urn": "soundcloud:users:790976431",
        "username": "7x11x13",
        "verified": false,
        "city": "",
        "country_code": null,
        "badges": {
            "pro": false,
            "pro_unlimited": false,
            "verified": false
        },
        "station_urn": "soundcloud:system-playlists:artist-stations:790976431",
        "station_permalink": "artist-stations:790976431"
    }
}

[7x11x13]

Looks like SoundCloud has been working on their internal API recently, may be more breaking changes in the near future. Thanks for the PR!