Release 2.0.3 - SerialPIO, UART, new WizNet boards, other board fixes
- Fix XIAO RP2040, allow swapping HW units 0/1 (#606)
- New WIZnet boards (#605)
- Fix Wire::available() when ::requestFrom fails (#604)
- Add attachInterruptParam (#602)
- Modify DFRobot Beetle pin_arduinos.h (#597)
- Deallocate resources on SerialPIO::end (#596)
- Updated PID for WiFi/BLE board and other changes (#595)