Add a few details towards phpcpd deprecation #593

Job	Run time
Code coverage (codecov)	0s
CI test (make validate)	32s
Build moodle-plugin-ci.phar	36s
Integration tests (8.3, main)	6m 17s
Integration tests (8.2, MOODLE_403_STABLE)	5m 58s
Integration tests (8.2, MOODLE_402_STABLE)	6m 7s
Integration tests (8.1, MOODLE_401_STABLE)	6m 56s
Integration tests (8.0, MOODLE_400_STABLE)	6m 29s
Integration tests (8.0, MOODLE_311_STABLE)	6m 5s
Integration tests (7.4, MOODLE_39_STABLE)	5m 52s
Integration tests (PHAR) (8.3, main)	5m 49s
Integration tests (PHAR) (8.2, MOODLE_403_STABLE)	5m 48s
Integration tests (PHAR) (8.1, MOODLE_402_STABLE)	5m 28s
Integration tests (PHAR) (8.0, MOODLE_401_STABLE)	6m 16s
Integration tests (PHAR) (7.4, MOODLE_400_STABLE)	5m 52s
	1h 14m 5s

Provide feedback