Bump Blinka and PlatformDetect

Blinka -> v7.3.0 for RP2040 i2c pin permutations fix
PlatformDetect -> 3.22.1 for MicroPython fixes

.github/workflows/micropython-with-blinka.yml

@@ -9,8 +9,8 @@ on:
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
   MICROPYTHON_VERSION: v1.18
-  BLINKA_VERSION: 6.20.1
-  PLATFORMDETECT_VERSION: 3.19.3
+  BLINKA_VERSION: 7.3.0
+  PLATFORMDETECT_VERSION: 3.22.1
   BUILD_TYPE: Release
   BOARD_TYPE: PICO