[BUG] Cover the case of the AWS Outage

[tuxoff]

Describe the bug
We had to experience the problem in terms of the AWS Outage us-east-1 with CloudWatch. https://www.theverge.com/2020/11/25/21719396/amazon-web-services-aws-outage-down-internet

Expected behavior
The application should still run even if AWS CloudWatch is not responding.

Please provide the steps to reproduce and if possible a minimal demo of the problem
Any instructions on how to reproduce a bug: play locally around the firewall to disable AWS connection and try to run.

Please tell about your environment:

• PHP Version: 7.3
• Operating system (distro): Official PHP Docker php:7.3.11-fpm-stretch
  • Web app
  • CLI app

[maxjmax]

The approach I have used for this (which is what laravel also seems to do), is to wrap the handlers in a WhatFailureGroupHandler

    $logger->setHandlers([new WhatFailureGroupHandler($handlers)]);

which will simply ignore any exceptions from handlers, allowing it to fallback to a FileHandler.