Increase MSRV to 1.80 #75

Job	Run time
build-rust-windows	5m 52s
build-rust-ubuntu	2m 11s
build-guest-binaries / build-guest-binaries (windows-2022-debug)	3m 28s
build-guest-binaries / build-guest-binaries (windows-2022-release)	3m 23s
fuzzing / fuzz	8m 44s
benchmarks / benchmark (hyperv, amd, release)	7m 2s
benchmarks / benchmark (hyperv, intel, release)	7m 29s
benchmarks / benchmark (mshv, amd, release)	4m 42s
benchmarks / benchmark (mshv, intel, release)	4m 51s
benchmarks / benchmark (kvm, amd, release)	4m 56s
benchmarks / benchmark (kvm, intel, release)	4m 43s
publish	5m 58s
cargo-publish / publish-hyperlight-packages	0s
	1h 3m 19s

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