Release 4.3.1

[4.3.1] - 2021.06.06

🐛 Bug Fixes

• Fix use number instead of string for amount in MarketAttachment
• Fix Unknown stream in Upload

🔧 Refactors

• Use formdata-node with form-data-encoder instead of form-data

📖 Documentation

• Regenerate docs

🧹 Chore

• Now used Github Workflows for tests instead of Travis CI
• Bump API Version to 5.131
• Update dependencies
• Updated dev dependencies