`BaseURL` axios config property not used for `isHTTP2Supported`

[gotdibbs]

When the axios instance in use has a baseURL set, this isn't factored into the URL that this library uses to check if HTTP2 is supported. This seems to result in an error like:

{
  status: 'rejected',
  reason: TypeError [ERR_INVALID_URL]: Invalid URL
      at __node_internal_captureLargerStackTrace (node:internal/errors:496:5)
      at new NodeError (node:internal/errors:405:5)
      at new URL (node:internal/url:676:13)
      at isHTTP2Supported ([...]/node_modules/axios-http2-adapter/dist/adapter.js:51:17)
      [...]
    input: '/api/v1/[...]',
    code: 'ERR_INVALID_URL'
  }
}

Looking at the code, I would think this might be a one-liner of const url: URL = new URL(config.baseURL || config.url!); but don't know the axios internals all that well.