Build

Setup mutation testing #1421

Job	Run time
Coding Standard	24s
Lint (8.2)	18s
Lint (7.4)	21s
Lint (8.1)	16s
Lint (8.0)	13s
Lint (8.4)	17s
Lint (8.3)	17s
PHPStan (8.0)	31s
PHPStan (7.4)	32s
PHPStan (8.4)	30s
PHPStan (8.3)	23s
PHPStan (8.3, composer require --dev doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctri...	31s
PHPStan (8.2)	27s
PHPStan (8.1)	27s
Tests (8.0, highest)	1m 31s
Tests (8.1, lowest)	1m 28s
Tests (7.4, highest)	1m 42s
Tests (8.1, highest)	1m 36s
Tests (8.2, lowest)	1m 17s
Tests (8.3, lowest)	1m 16s
Tests (8.3, highest)	1m 24s
Tests (8.4, lowest)	1m 21s
Tests (7.4, lowest)	1m 43s
Tests (8.3, highest, composer config extra.patches.doctrine/orm --json --merge '["compatibility/p...	1m 16s
Tests (8.2, highest)	1m 31s
Tests (8.0, lowest)	1m 25s
Tests (8.4, highest)	1m 37s
	24m 34s

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