WIP: Bump all dependencies to current ones #407

Job	Run time
test (8.3, main, pgsql)	4m 16s
test (8.3, main, mariadb)	4m 36s
test (8.2, MOODLE_403_STABLE, pgsql)	4m 26s
test (8.2, MOODLE_402_STABLE, pgsql)	4m 25s
test (8.1, MOODLE_401_STABLE, pgsql)	4m 18s
test (8, MOODLE_400_STABLE, pgsql, xmlrpc-beta)	4m 46s
test (8, MOODLE_311_STABLE, pgsql, xmlrpc-beta)	4m 10s
test (7.4, MOODLE_310_STABLE, pgsql)	3m 58s
test (7.4, MOODLE_39_STABLE, pgsql)	3m 59s
test (7.4, MOODLE_38_STABLE, pgsql)	4m 13s
test (8.1, main, pgsql)	4m 3s
test (8.1, main, mariadb)	4m 2s
test (8, MOODLE_403_STABLE, pgsql)	4m 21s
test (8, MOODLE_402_STABLE, pgsql)	4m 2s
test (7.4, MOODLE_401_STABLE, pgsql)	4m 27s
	1h 4m 2s

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