switch off GAP's info messages late enough #7

Job	Run time
doctest (1.10, ubuntu-latest)	32m 2s
doctest (1.11-nightly, ubuntu-latest)	28m 26s
test (1.6, short, ubuntu-latest)	1h 13m 27s
test (1.6, long, ubuntu-latest)	41m 46s
doctest (nightly, ubuntu-latest)	28m 21s
test (1.10, short, ubuntu-latest)	54m 56s
doctest (1.10, ubuntu-latest, depwarn=error)	33m 22s
test (1.10, long, ubuntu-latest)	34m 47s
doctest (1.10, macOS, RPTU)	0s
test (1.11-nightly, short, ubuntu-latest)	1h 5m 29s
test (1.11-nightly, long, ubuntu-latest)	39m 24s
test (nightly, short, ubuntu-latest)	1h 1m 29s
test (nightly, long, ubuntu-latest)	37m 39s
test (1.10, short, ubuntu-latest, depwarn=error)	55m 44s
test (1.10, long, ubuntu-latest, depwarn=error)	35m 15s
test (1.10, short, macOS, RPTU)	0s
test (1.10, long, macOS, RPTU)	0s
test (1.10, book, ubuntu-latest)	36m 53s
	10h 59m 0s

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