Bugfix: trimmed metadata hash comparison fails in `is_codegen_valid_f… #3700

Job	Run time
Cargo check (WASM)	1m 38s
Cargo check	5m 43s
Cargo fmt	13s
Check documentation and run doc tests	5m 52s
Test (Light Client)	4m 3s
Test (Native)	9m 57s
Test (WASM)	6m 4s
Test (Unstable Backend)	10m 24s
Cargo clippy	3m 56s
Check unused dependencies	21s
	48m 11s

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