[Feature] Add Ookla Server List to API

[svenvg93]

📃 Description

This PR adds a server list to the API /api/v1/speedtests/servers.

Response;

{
    "data": {
        "52365": "Odido (Amsterdam, 52365)",
        "55633": "Odido (Arnhem, 55633)",
        "52857": "Delta Fiber Nederland (Rotterdam, 52857)",
        "6554": "WorldStream B.V. (Naaldwijk, 6554)",
        "26476": "Glasnet (Den Haag, 26476)",
        "3242": "ColoCenter bv (Zoetermeer, 3242)",
        "35392": "Mr_joep (Breda, 35392)",
        "32582": "VodafoneZiggo (Schiphol, 32582)",
        "61186": "KPN B.V. (Amstelveen, 61186)",
        "23094": "31173 Services AB (Amsterdam, 23094)",
        "13157": "AVUR AS (Amsterdam, 13157)",
        "13764": "Eranium B.V. (Amsterdam, 13764)",
        "31337": "Qonnected B.V. (Amsterdam, 31337)",
        "46712": "Hivelocity (Amsterdam, 46712)",
        "35058": "Clouvider Ltd (Amsterdam, 35058)",
        "11611": "KamaTera, Inc. (Amsterdam, 11611)",
        "9913": "fdcservers.net (Amsterdam, 9913)",
        "50720": "ServerRoom.net (Amsterdam, 50720)",
        "33814": "dstny (Amsterdam, 33814)",
        "45549": "NewsXS B.V. (Amsterdam, 45549)"
    },
    "message": "Speedtest servers fetched successfully."
}

📖 Documentation

alexjustesen/speedtest-tracker-docs#75

🪵 Changelog

➕ Added

• Add the ability to request the Ookla server list

📷 Screenshots

If this PR has any UI/UX changes it's strongly suggested you add screenshots here.