Prepare for 4.4.1 release #623

Job	Run time
SelfUpdate tests (PHAR) (8.2)	30s
Code coverage (codecov)	0s
SelfUpdate tests (PHAR) (8.1)	35s
CI test (make validate)	54s
SelfUpdate tests (PHAR) (8.0)	22s
SelfUpdate tests (PHAR) (7.4)	12s
Integration tests (8.3, main)	6m 3s
Integration tests (8.2, MOODLE_403_STABLE)	6m 5s
Build moodle-plugin-ci.phar	24s
Integration tests (8.2, MOODLE_402_STABLE)	6m 7s
Integration tests (8.1, MOODLE_401_STABLE)	6m 54s
Integration tests (8.0, MOODLE_400_STABLE)	6m 39s
Integration tests (8.0, MOODLE_311_STABLE)	5m 49s
Integration tests (7.4, MOODLE_39_STABLE)	5m 47s
Integration tests (PHAR) (8.3, main)	6m 4s
Integration tests (PHAR) (8.2, MOODLE_403_STABLE)	5m 28s
Integration tests (PHAR) (8.1, MOODLE_402_STABLE)	5m 19s
Integration tests (PHAR) (8.0, MOODLE_401_STABLE)	6m 33s
Integration tests (PHAR) (7.4, MOODLE_400_STABLE)	6m 12s
	1h 15m 57s

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