[x] bug report
[ ] feature request

# Detailed description
cloudwatch logging doesn't work if USE_SSL is enabled. The problem seems to be in 
https://github.com/localstack/localstack/blob/f9d5c1a77088bf65e10d05a298ef7ab61fc64314/localstack/utils/cloudwatch/cloudwatch_util.py#L57
If protocol is https ,the service is enabled resolver returns False. Logging works normally when USE_SSL=0
Happens at least with 0.11.1, but seems to be the same problem with older versions also.

## Expected behavior
Cloudwatch logging works
...

## Actual behavior
Nothing is logged to cloudwatch logs

# Steps to reproduce
set USE_SSL=1

## Command used to start LocalStack
docker-compose up

import io
import os
import re
import pwd
import grp
import sys
import json
import uuid
import time
import glob
import base64
import socket
import hashlib
import decimal
import logging
import tarfile
import zipfile
import binascii
import calendar
import tempfile
import threading
import subprocess
import six
import shutil
import requests
import dns.resolver