Try fix platform test on CI #234

Job	Run time
Platform test (7.4)	3m 8s
Platform test (8.0)	3m 32s
Platform test (8.1)	3m 4s
Platform test (8.2)	3m 12s
Platform test (8.3)	3m 43s
Platform test (8.4)	3m 3s
Platform test (8.1, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 34s
Platform test (8.2, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 25s
Platform test (8.3, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 53s
Platform test (8.4, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 56s
	30m 30s

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