Increase a couple test timeouts #5630

Job	Run time
Additional Builds and Concurrency Tests	14m 56s
Basic Checks	19m 44s
Slow tests	18m 13s
Measure coverage	30m 13s
miri	3m 1s
sanitize (address)	17m 54s
Release builds and tests	9m 48s
sanitize (address, multi-threading)	19m 20s
sanitize (leak)	7m 59s
sanitize (leak, multi-threading)	8m 24s
	2h 29m 32s

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