Prepare for 4.4.2 release #648

Job	Run time
CI test (make validate)	56s
SelfUpdate tests (PHAR) (8.3)	32s
SelfUpdate tests (PHAR) (8.2)	21s
Code coverage (codecov)	0s
SelfUpdate tests (PHAR) (8.1)	19s
SelfUpdate tests (PHAR) (8.0)	51s
SelfUpdate tests (PHAR) (7.4)	14s
Build moodle-plugin-ci.phar	27s
Integration tests (8.3, main)	6m 59s
Integration tests (8.2, MOODLE_403_STABLE)	5m 57s
Integration tests (8.2, MOODLE_402_STABLE)	6m 35s
Integration tests (8.1, MOODLE_401_STABLE)	7m 1s
Integration tests (8.0, MOODLE_400_STABLE)	6m 15s
Integration tests (8.0, MOODLE_311_STABLE)	6m 11s
Integration tests (7.4, MOODLE_39_STABLE)	6m 4s
Integration tests (PHAR) (8.3, main)	6m 19s
Integration tests (PHAR) (8.2, MOODLE_403_STABLE)	5m 57s
Integration tests (PHAR) (8.1, MOODLE_402_STABLE)	5m 34s
Integration tests (PHAR) (8.0, MOODLE_401_STABLE)	6m 41s
Integration tests (PHAR) (7.4, MOODLE_400_STABLE)	5m 37s
	1h 18m 50s

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