Airflow 2.1.0, Docker

**What happened**:

Users with the Guest role assigned are stuck in a redirect loop once they attempt to login successfully to the web interface.

**What you expected to happen**:

Get minimal access to the dashboard with the appropriate views for a guest role

**How to reproduce it**:
1. Assign a guest role to any user and remove any other roles with the administrator user.
2. Logout from the admin account 
3. Login as the guest user
4. You will notice constant HTTP redirects, and the dashboard will not show up.


tests/www/views/test_views_acl.py
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import datetime
import json
import urllib.parse
import pytest
from airflow.security import permissions
from airflow.utils import timezone
from airflow.utils.state import State
from airflow.utils.types import DagRunType
from tests.test_utils.api_connexion_utils import create_user
from tests.test_utils.db import clear_db_runs
from tests.test_utils.www import check_content_in_response, check_content_not_in_response, client_with_login
NEXT_YEAR = datetime.datetime.now().year + 1
DEFAULT_DATE = timezone.datetime(NEXT_YEAR, 6, 1)
USER_DATA = {
    "dag_tester": (
        "dag_acl_tester",
        {
            "first_name": 'dag_test',
            "last_name": 'dag_test',
            "email": 'dag_test@fab.org',
            "password": 'dag_test',
        },
    ),