[ticket/17135] Introduce Symfony Mailer for emails backend #2938

Job	Run time
PHP 8.1 - none	1m 42s
PHP 8.1 - postgres:9.5	1m 55s
PHP 8.1 - postgres:9.6	2m 11s
PHP 8.1 - postgres:10	1m 56s
PHP 8.1 - postgres:11	1m 56s
PHP 8.1 - postgres:12	2m 2s
PHP 8.1 - mariadb:10.2	9s
PHP 8.1 - postgres:13	2m 0s
PHP 8.1 - mariadb:10.3	8s
PHP 8.1 - postgres:14	2m 10s
PHP 8.1 - mariadb:10.4	10s
PHP 8.1 - postgres:15	2m 8s
PHP 8.1 - mariadb:10.6	1s
Windows - unit - PHP 8.1 - postgres	6m 37s
PHP 8.2 - postgres:9.5	1m 57s
PHP 8.1 - mariadb:10.9	1s
Windows - unit - PHP 8.2 - postgres	6m 43s
PHP 8.3 - postgres:9.5	1m 52s
PHP 8.1 - mariadb:10.10	1m 49s
Windows - functional - PHP 8.1 - postgres	6m 44s
PHP 8.1 - mariadb:10.11	11s
Windows - functional - PHP 8.2 - postgres	6m 42s
PHP 8.1 - MySQL Slow Tests	1s
PHP 8.1 - MyISAM Tests	1s
PHP 8.1 - mysql:5.7	1s
PHP 8.1 - sqlite3	1m 19s
PHP 8.1 - mysql:8.0	1s
PHP 8.1 - MSSQL 2017	1m 39s
PHP 8.1 - mysql:8.1	1s
PHP 8.1 - MSSQL 2019	1m 37s
PHP 8.1 - MSSQL 2022	1m 37s
PHP 8.2 - mysql:8.0	1s
PHP 8.2 - mariadb:10.2	1s
PHP 8.3 - mysql:5.7	1s
PHP 8.3 - mariadb:10.2	1s
	57m 25s

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