Prepare for 4.4.2 release #627

Job	Run time
SelfUpdate tests (PHAR) (8.3)	30s
Code coverage (codecov)	53s
SelfUpdate tests (PHAR) (8.2)	20s
CI test (make validate)	1m 7s
SelfUpdate tests (PHAR) (8.1)	18s
SelfUpdate tests (PHAR) (8.0)	26s
SelfUpdate tests (PHAR) (7.4)	14s
Integration tests (8.3, main)	6m 14s
Build moodle-plugin-ci.phar	25s
Integration tests (8.2, MOODLE_403_STABLE)	5m 47s
Integration tests (8.2, MOODLE_402_STABLE)	6m 14s
Integration tests (8.1, MOODLE_401_STABLE)	6m 49s
Integration tests (8.0, MOODLE_400_STABLE)	6m 26s
Integration tests (8.0, MOODLE_311_STABLE)	6m 4s
Integration tests (7.4, MOODLE_39_STABLE)	5m 37s
Integration tests (PHAR) (8.3, main)	5m 54s
Integration tests (PHAR) (8.2, MOODLE_403_STABLE)	6m 8s
Integration tests (PHAR) (8.1, MOODLE_402_STABLE)	5m 14s
Integration tests (PHAR) (8.0, MOODLE_401_STABLE)	6m 2s
Integration tests (PHAR) (7.4, MOODLE_400_STABLE)	5m 37s
	1h 16m 19s

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