Tests

Use my own php-merge fork #21051

Job	Run time
Tests (8.1, ubuntu-latest)	1m 31s
Tests (8.0, windows-latest)	3m 1s
Tests (7.4, windows-latest)	5m 24s
Tests (7.4, ubuntu-latest)	2m 24s
Tests (8.0, ubuntu-latest)	1m 41s
Tests (8.1, windows-latest)	3m 16s
Tests (8.2, windows-latest)	2m 51s
Determine levels tests matrix	17s
Integration tests (windows-latest)	1m 36s
Integration tests (ubuntu-latest)	38s
Tests (8.2, ubuntu-latest)	1m 33s
Tests (8.3, windows-latest)	2m 52s
Tests (8.3, ubuntu-latest)	1m 39s
Tests (8.4, ubuntu-latest)	1m 34s
Tests (8.4, windows-latest)	3m 5s
Levels tests	0s
	33m 22s

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