v8.1.1

Contributed:

• Adjust typegen for Vec<{ struct: <type> }> (Thanks to https://github.com/zannis)
• Adjust typegen __dirname for ESM (Thanks to https://github.com/drewstone)

Changes:

• Fix entriesPaged where no at?: BlockHash is specified
• Apply windcard matches for democracy::vote::Vote and identity::type::Data
• Adjust default "no RPC response" timeout to 60s
• Update to latest Substrate, Kusama & Polkadot static metadata