Release 3.0.0-beta.6

• update benchmarks (98744b3)
• reuse copyArrayBuffer for copyDataView, to ensure custom logic is consistent (37a4d0c)
• use toStringTag when available (53be968)
• avoid use of global toString (656aab5)
• add custom transformer for errors (3074d0c)
• cleanup of rollup / tsconfig infrastructure (cd6e816)
• update dependencies (086f1f5)