Update to upstream (zcash/main v0.8.0) #1248

Job	Run time
Book tests	15s
Bitrot check	2m 46s
Latest build on ubuntu-latest	52s
Latest build on windows-latest	3m 5s
Build target wasm32-wasi	2m 16s
Intra-doc links	3m 0s
Latest build on macOS-latest	59s
Test on ubuntu-latest	25m 19s
Code coverage	15m 21s
Test on windows-latest	26m 22s
Rustfmt	16s
Test on macOS-latest	19m 30s
	1h 40m 1s

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