SUPPORT-86536 - add symfony 6 support (#13) #3

Job	Run time
Run tests PHP 7.1 Symfony 3.* highest	1m 13s
Run tests PHP 7.1 Symfony 4.* highest	1m 11s
Run tests PHP 7.2 Symfony 3.* highest	1m 9s
Run tests PHP 7.2 Symfony 4.* highest	1m 22s
Run tests PHP 7.2 Symfony 5.* highest	1m 27s
Run tests PHP 7.3 Symfony 3.* highest	1m 7s
Run tests PHP 7.3 Symfony 4.* highest	1m 3s
Run tests PHP 7.3 Symfony 5.* highest	1m 24s
Run tests PHP 7.4 Symfony 3.* highest	59s
Run tests PHP 7.4 Symfony 4.* highest	1m 0s
Run tests PHP 7.4 Symfony 5.* highest	1m 10s
Run tests PHP 8.0 Symfony 4.* highest	1m 1s
Run tests PHP 8.0 Symfony 5.* highest	1m 17s
Run tests PHP 8.1 Symfony 4.* highest	1m 16s
Run tests PHP 8.1 Symfony 5.* highest	1m 21s
Run tests PHP 8.1 Symfony 6.* highest	1m 24s
Run tests PHP 8.2 Symfony 4.* highest	1m 12s
Run tests PHP 8.2 Symfony 5.* highest	1m 23s
Run tests PHP 8.2 Symfony 6.* highest	1m 23s
Run tests PHP 7.1 Symfony 3.* lowest	1m 11s
	24m 33s

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