### Describe the bug

libraries like axios-mock-adapter define an adapter but in same cases need to access to original adapter.

It was working correctly before as the adapter was always a function.
Now it can be an array of string

Only the method getAdapter() in adapters/adapter.js can allow access to original adapters (xhr and http)
But this method is not exported a all at top level.

Can you export it ? 


### To Reproduce

Try to use axios-mock-adapter plugin with onNoMatch option

### Code snippet

_No response_

### Expected behavior

_No response_

### Axios Version

1.2.1 and upper

### Adapter Version

_No response_

### Browser

_No response_

### Browser Version

_No response_

### Node.js Version

_No response_

### OS

_No response_

### Additional Library Versions

_No response_

### Additional context/Screenshots

_No response_
test/module/typings/esm/index.ts
import axios, {
  InternalAxiosRequestConfig,
  AxiosRequestConfig,
  AxiosHeaders,
  AxiosRequestHeaders,
  AxiosResponseHeaders,
  RawAxiosRequestHeaders,
  AxiosResponse,
  AxiosError,
  AxiosInstance,
  AxiosAdapter,
  Cancel,
  CancelTokenSource,
  Canceler,
  AxiosProgressEvent,
  ParamsSerializerOptions,
  toFormData,
  formToJSON,
  all,
  isCancel,
  isAxiosError,
  spread
} from 'axios';
const config: AxiosRequestConfig = {