获取项目版本信息

{
    "project": "purpur",
    "metadata": {
        "current": "1.21.8"
    },
    "versions": [
        "1.14.1",
        "1.14.2",
        "1.14.3",
        "1.14.4",
        "1.15",
        "1.15.1",
        "1.15.2",
        "1.16.1",
        "1.16.2",
        "1.16.3",
        "1.16.4",
        "1.16.5",
        "1.17",
        "1.17.1",
        "1.18",
        "1.18.1",
        "1.18.2",
        "1.19",
        "1.19.1",
        "1.19.2",
        "1.19.3",
        "1.19.4",
        "1.20",
        "1.20.1",
        "1.20.2",
        "1.20.4",
        "1.20.6",
        "1.21",
        "1.21.1",
        "1.21.3",
        "1.21.4",
        "1.21.5",
        "1.21.6",
        "1.21.7",
        "1.21.8"
    ]
}