Division by zero is not warning since PHP 8.0 beta4

Problem/Motivation

The RFC https://wiki.php.net/rfc/engine_warnings#division_by_zero changed division by zero to fatal error so dblog tests fails
In #3156885: Change \Drupal\error_test\Controller\ErrorTestController::generateWarnings() to throw E_NOTICE error compatible with PHP 8 the controller already changed but not enough

Steps to reproduce

https://3v4l.org/AVtFS

$ php -v
PHP 8.0.0beta4 (cli) (built: Sep 17 2020 15:03:04) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.0-dev, Copyright (c) Zend Technologies
    with Zend OPcache v8.0.0beta4, Copyright (c), by Zend Technologies
/var/www/html/web $ php -r 'echo 1/0;'
PHP Fatal error:  Uncaught DivisionByZeroError: Division by zero in Command line code:1
Stack trace:
#0 {main}
  thrown in Command line code on line 1

Fatal error: Uncaught DivisionByZeroError: Division by zero in Command line code:1
Stack trace:
#0 {main}
  thrown in Command line code on line 1

Proposed resolution

Remove division by zero from controller

Remaining tasks

patch/review/commit

User interface changes

no

API changes

no

Data model changes

no

Release notes snippet

no