upgraded rust channel to 1.79 #121

Job	Run time
Bitrot check	1m 0s
Build target wasm32-wasi	59s
Latest build on ubuntu-latest	2m 3s
Check ZFuture build on Linux	1m 41s
Latest build on windows-latest	5m 5s
Check ZFuture build on macOS	1m 31s
Clippy (MSRV)	34s
Latest build on macOS-latest	2m 0s
Check ZFuture build on Windows	4m 16s
Clippy (beta)	12s
Code coverage	8m 58s
Intra-doc links	1m 48s
Rustfmt	14s
protobuf consistency	51s
UUID validity	6s
Test on Linux	1s
Test Orchard on Linux	1s
Test NU6 on Linux	1s
Test on macOS	3m 48s
Test Orchard on macOS	3m 28s
Test on Windows	1s
Test Orchard on Windows	1s
Test NU6 on Windows	1s
	38m 40s

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