### 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/specs/instance.spec.js
url: 'foo/bar',
      params: {
        name: 'axios'
      }
    };
    expect(instance.getUri(options)).toBe('https://api.example.com/foo/bar?name=axios');
  });
  it('should correctly build url without baseURL', function () {
    const instance = axios.create();
    const options = {
      url: 'foo/bar?foo=bar',
      params: {
        name: 'axios'
      }
    };
    expect(instance.getUri(options)).toBe('foo/bar?foo=bar&name=axios');
  });
  it('should correctly discard url hash mark', function () {
    const instance = axios.create();
    const options = {
      baseURL: 'https://api.example.com',
      url: 'foo/bar?foo=bar#hash',
      params: {
        name: 'axios'
      }
    };
    expect(instance.getUri(options)).toBe('https://api.example.com/foo/bar?foo=bar&name=axios');
  });
});