v8.4.1

Changes:

• Added support for typegen over Range/RangeInclusive types
• Add explicit support for Call typegen (inclusive of non-defaults)
• Deupe wss:// handling in polkadot-types-from-{chain, defs}
• Allow for optional definitions.ts in typegen (only use chain)
• Optimize Compact<*> decoding in Uint8Array streams
• Use I* interfaces for extrinsic payload getters
• Re-add support for historic linked-map queries
• Update to latest Substrate, Kusama & Polkadot static metadata
• Add latest upgrade blocks for Polkadot, Kusama & Westend