Increase CI supported versions (#32) #32

Job	Run time
Tests / Fetch supported versions	8s
Tests / Static analysis	28s
Tests / Late migration - PHP	17s
Tests / Late migration - Symfony	2m 14s
Tests / Bare minimum	20s
Tests / Bare minimum - Special case - Symfony 5.4	14s
Tests / Up to date versions - Special case - Symfony 5.4	3m 26s
Tests / Up to date versions	3m 42s
Tests / Nightly - Symfony - With highest supported PHP version	12s
Tests / Nightly - PHP - With highest supported Symfony versions	19s
Tests / Nightly - Symfony - With lowest supported PHP version	10s
Tests / Nightly - PHP - With lowest supported Symfony versions	16s
	11m 46s

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