### Is your feature request related to a problem? Please describe.

I am creating a library that will mostly be used in electron projects. The library needs to perform http request to a localhost server that uses a self signed certificate, so I need to use https.Agent. The problem is, that axios uses the xhr adapter instead of the http adapter. When i try to import the correct adapter from `axios/lib/adapters/http` I get the error `ERR_PACKAGE_PATH_NOT_EXPORTED`. 

### Describe the solution you'd like

I need a way to tell axios to always use the http adapter. The easiest way to do this is by exposing `axios/lib/adapters/http`.

### Describe alternatives you've considered

_No response_

### Additional context/Screenshots

_No response_
lib/defaults/index.js
if (utils.isString(rawValue)) {
    try {
      (parser || JSON.parse)(rawValue);
      return utils.trim(rawValue);
    } catch (e) {
      if (e.name !== 'SyntaxError') {
        throw e;
      }
    }
  }
  return (encoder || JSON.stringify)(rawValue);
}
const defaults = {
  transitional: transitionalDefaults,
  adapter: getDefaultAdapter(),
  transformRequest: [function transformRequest(data, headers) {
    const contentType = headers.getContentType() || '';
    const hasJSONContentType = contentType.indexOf('application/json') > -1;
    const isObjectPayload = utils.isObject(data);
    if (isObjectPayload && utils.isHTMLForm(data)) {
      data = new FormData(data);
    }
    const isFormData = utils.isFormData(data);
    if (isFormData) {