Track cold starts #3262

Job	Run time
PHPStan	23s
Tests - PHP 8.1	55s
PHP CodeSniffer	20s
Tests - PHP 8.3	1m 9s
Tests - PHP 8.4	53s
Tests - PHP 8.2	53s
JS type validation and linting	26s
Tests - PHP 8.0 --prefer-lowest	1m 7s
Tests - PHP 8.0	55s
	7m 1s

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