支持更高版本的node.js

[XCwosjw]

在node.js的 16.17.1 LTS 版本和 18.10.0 Current 版本中使用共享接入均会报错

node:internal/per_context/domexception:53
    ErrorCaptureStackTrace(this);
    ^
DOMException [SyntaxError]: Usages cannot be empty when creating a key.
    at new DOMException (node:internal/per_context/domexception:53:5)
    at __node_internal_ (node:internal/util:509:10)
    at SubtleCrypto.generateKey (node:internal/crypto/webcrypto:148:11)
    at async genKey (C:\Users\XCwosjw\AppData\Roaming\npm\node_modules\freecdn\lib\cmd-key.js:43:18)
    at async init (C:\Users\XCwosjw\AppData\Roaming\npm\node_modules\freecdn\lib\cmd-key.js:18:9)
    at async getPublicKey (C:\Users\XCwosjw\AppData\Roaming\npm\node_modules\freecdn\lib\cmd-key.js:91:9)
    at async getPublicKeyB64 (C:\Users\XCwosjw\AppData\Roaming\npm\node_modules\freecdn\lib\cmd-js.js:16:20)
    at async setupSwOption (C:\Users\XCwosjw\AppData\Roaming\npm\node_modules\freecdn\lib\cmd-js.js:79:23)
    at async Command.run (C:\Users\XCwosjw\AppData\Roaming\npm\node_modules\freecdn\lib\cmd-js.js:110:9)

但在node.js 16.10.0 版本不会出现此问题