Merge ElementsProject/rust-elements#237: Automated daily update to ru… #563

Job	Run time
Test - stable toolchain	3m 12s
Check WASM	29s
Docs - stable toolchain (recent)	31s
Prepare	4s
Test - nightly toolchain	2m 52s
Docs - nightly toolchain (recent)	33s
Lint - nightly toolchain (recent)	40s
Test - MSRV	8m 16s
	16m 37s

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