Bump Blinka to 6.14.1

Includes a fix for an SPI-related MSB error using Blinka on Pico/MicroPython

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

@@ -9,7 +9,7 @@ on:
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
   MICROPYTHON_VERSION: v1.16
-  BLINKA_VERSION: 6.13.0
+  BLINKA_VERSION: 6.14.1
   PLATFORMDETECT_VERSION: 3.15.3
   BUILD_TYPE: Release
   BOARD_TYPE: PICO