Upgrade priority: Low. Should be done alongside an update to @polkadot/util to 4.0
Changes:
- Adjust auto-gas to contract RPC call to 5 * 10 ^ 12 (align with Rust)
- Adjust derive AccountId check to take Ethereum-compatible chains into account
- Fallback for chains with invalid council proposal data in derives
- Bump static v12 Metadata (tests) to latest Substrate version
- Bump
@polkadot/{util,util-crypto}to 4.0 (optimized WASM layers)