Rust

Re-enable WASM signer tests #5463

Job	Run time
Cargo fmt	26s
Check unused dependencies	1m 41s
Cargo clippy	5m 59s
Cargo check	12m 3s
Check documentation and run doc tests	4m 32s
Cargo check (WASM)	1m 28s
Cargo clippy (WASM)	2m 17s
Test (no_std)	1m 57s
Test chainhead backend	13m 55s
Test (Native)	18m 17s
Test (Light Client)	7m 0s
Test (WASM)	11m 7s
	1h 20m 42s

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