Upgrade to Rust 1.84 #1104

Job	Run time
Measure coverage	29m 6s
Additional Builds and Concurrency Tests	16m 21s
miri	2m 55s
Basic Checks	21m 47s
Release builds and tests	12m 12s
Slow tests	21m 43s
sanitize (address)	18m 13s
sanitize (address, multi-threading)	20m 28s
sanitize (leak)	3m 58s
sanitize (leak, multi-threading)	3m 25s
	2h 30m 8s

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