chore: allow Symfony 8 #120

Job	Run time
Static analysis	22s
Check composer.json	12s
Tests (7.3)	18s
Tests (7.4)	25s
Tests (8.3)	23s
Tests (8.2)	22s
Tests (7.2, --prefer-lowest --prefer-stable, weak)	48s
Tests (8.1)	24s
Tests (8.0)	19s
Tests (8.4)	21s
Tests (8.4, dev)	26s
Tests (7.2)	28s
Tests (7.2)	28s
Static analysis	22s
Tests (8.1)	24s
Tests (8.0)	19s
Tests (7.4)	25s
Tests (7.3)	24s
Tests (8.3)	23s
Tests (8.4)	21s
Tests (8.2)	22s
Tests (7.2, --prefer-lowest --prefer-stable, weak)	48s
Tests (8.4, dev)	26s
Check composer.json	12s
Check composer.json	9s
Static analysis	19s
Tests (8.2)	25s
Tests (7.2)	22s
Tests (7.3)	21s
Tests (8.4)	20s
Tests (8.4, dev)	25s
Tests (7.4)	22s
Tests (7.2, --prefer-lowest --prefer-stable, weak)	29s
Tests (8.1)	26s
Tests (8.3)	24s
Tests (8.0)	25s
	14m 9s

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