v10.12.5

Contributed:

• chore: fix typos in error (Thanks to https://github.com/xiaoxianBoy)

Changes:

• Upgrade westend types-known for 1009000
• Add disableAscii option for toHuman, and toPrimitive
• V14 Update substrate latest metadata
• V15 Update substrate latest metadata
• Bump yarn to 4.1.1
• Add assetId getter field to to necessary ExtrinsicPayloads
• Add Updated Runtime Defintions
  • ValidateStatement
  • MMRApi
    • mmr_root
    • mmr_leaf_count
  • Core v5
  • GenesisBuilder
  • MixnetApi