disconnectVpn throws error when stopping VPN on iOS

[Kerim-hash]

After integrating the library into iOS, calling the Stop VPN button (which triggers OutlineVpn.disconnectVpn) results in an error.
React Native reports a mismatch in the number of arguments passed to the native method.

Error message:

OutlineVpn.disconnectVpn was called with 0 arguments but expects 3 arguments.
If you haven't changed this method yourself, this usually means that your versions
of the native code and JavaScript code are out of sync.