Pulls down the upstream patch from https://github.com/micropython/micropython/pull/7250 and applies it. Issue discussed here: https://github.com/micropython/micropython/issues/5356
Should include fixes and improvements to RP2040 made in versions 6.9.2 and 6.10.1.
This new workflow will build a separate release of MicroPython that includes Blinka and PlatformDetect for compatibility with Adafruit CircuitPython .py libraries.