v2.8.1

What's Changed

• feat: add OrigQuoteOrderQuantity field for order responses by @mdawar in #660
• Add MarginBorrowRepayService by @taobig in #662
• Update CreateUserUniversalTransferService by @taobig in #667
• Add ListMarginBorrowRepayService by @taobig in #665
• Added response fields for GET /sapi/v1/margin/account by @taobig in #666
• fix MarginBorrowRepayService by @taobig in #668
• Update GetMaxBorrowableService by @taobig in #669

Full Changelog: v2.8.0...v2.8.1