v1.26.1

• Update docs for the new system.accountNextIndex (Thanks to https://github.com/shawntabrizi)
• Update contracts call parameter typing (Thanks to https://github.com/kwingram25)
• Adjust votingBalance to only return freeBalance (only council voting is free + reserved)
• Additional checks for referenced Vec sub-type deconstruction in typegen
• Allow for API typesBundle option to inject a group of chain versions types
• Update metadata static tests for latest Substrate
• @polkadot/util 3.0