AO3-6308 fix user suspension end time #4517

Job	Run time
rake db:otwseed	1m 4s
rspec spec/controllers	11m 20s
rspec spec/models	5m 39s
rspec --exclude-pattern 'spec/{controllers,models}/*/.rb'	9m 6s
cucumber features/admins	5m 59s
cucumber features/bookmarks	4m 31s
cucumber features/collections	5m 48s
cucumber features/comments_and_kudos	6m 22s
cucumber features/gift_exchanges	6m 38s
cucumber features/importing	2m 36s
cucumber features/other_a	10m 1s
cucumber features/other_b	6m 13s
cucumber features/prompt_memes_a	3m 54s
cucumber features/prompt_memes_b	3m 27s
cucumber features/prompt_memes_c	5m 5s
cucumber features/search	6m 35s
cucumber features/tag_sets	3m 17s
cucumber features/tags_and_wrangling	5m 13s
cucumber features/users	4m 46s
cucumber features/works	13m 9s
	2h 0m 43s

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