Build

Set up mutation testing #1510

Job	Run time
Coding Standard	20s
Lint (7.4)	20s
PHPStan (8.0)	27s
Lint (8.3)	20s
PHPStan (8.3)	22s
PHPStan (8.2)	25s
PHPStan (8.1)	28s
PHPStan (7.4)	25s
Tests (7.4, lowest)	1m 28s
Lint (8.2)	18s
Lint (8.0)	16s
Lint (8.4)	19s
PHPStan (8.4)	29s
Tests (7.4, highest)	1m 41s
PHPStan (8.3, composer require --dev doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctri...	24s
Tests (8.0, highest)	1m 35s
Tests (8.4, highest)	1m 26s
Tests (8.1, highest)	1m 25s
Tests (8.2, lowest)	1m 26s
Tests (8.1, lowest)	1m 21s
Lint (8.1)	20s
Tests (8.3, highest)	1m 23s
Tests (8.0, lowest)	1m 24s
Tests (8.2, highest)	1m 29s
Tests (8.3, highest, composer config extra.patches.doctrine/orm --json --merge '["compatibility/p...	1m 30s
Tests (8.3, lowest)	1m 17s
Tests (8.4, lowest)	1m 26s
Mutation Testing (8.4)	16s
Mutation Testing (8.2)	20s
Mutation Testing (8.3)	22s
	25m 2s

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