check

slightly increase allowed loss for lossy, as pngqaunt 3 optimises more #444

Job	Run time
update_worker_options_in_readme	6s
containers (debian:buster)	1m 29s
windows (2.7)	5m 15s
check (1.9.3)	39s
containers (debian:bullseye)	1m 5s
windows (3.0)	3m 0s
containers (debian:bookworm)	1m 3s
check (2.7)	43s
windows (3.1)	2m 52s
check (3.0)	28s
windows (3.2)	2m 53s
check (3.1)	35s
coverage	32s
windows (3.3)	3m 38s
check (3.2)	30s
windows (3.4)	5m 0s
check (3.3)	32s
check (3.4)	29s
check (jruby-9.4)	1m 1s
	31m 50s

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