fix: wasm_executor get_weights supports hotkey-based WeightAssignment #415

Job	Run time
Clippy	1m 50s
Test	1m 23s
Build	2m 22s
Coverage	1m 29s
Docker Nightly Build	0s
Nightly Build & Test	0s
Docker	2m 7s
E2E	1m 19s
Integration	1m 18s
Docker Integration (5 Validators + WASM)	5m 5s
Release	-1s
	16m 52s

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