Add a timeout to TestWorld #5483

Job	Run time
Basic Checks	14m 28s
Additional Builds and Concurrency Tests	13m 20s
miri	3m 5s
Measure coverage	27m 0s
Release builds and tests	10m 27s
Slow tests	13m 39s
sanitize (address)	17m 33s
sanitize (address, multi-threading)	18m 7s
sanitize (leak)	7m 46s
sanitize (leak, multi-threading)	9m 44s
	2h 15m 9s

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