Rust

xtask: Update OVMF prebuilts #5838

Job	Run time
Build (stable MSRV)	25s
Test Coverage	48s
Build Standard Binary (nightly)	22s
Build (feature permutations)	3m 28s
Lints	1m 8s
Unit + Doc Tests (Miri)	1m 8s
Nightly (build, test, doc)	2m 39s
Unit + Doc Tests	1m 47s
Integration Test (AArch64)	4m 58s
Integration Test (IA-32)	1m 43s
Integration Test (x86_64)	1m 26s
Integration Test (x86_64 Windows)	4m 27s
	24m 19s

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