remove rp2040 built-in SdFat since it conflicts with SdFat - Adafruit's fork

Author: hathach

.github/workflows/githubci.yml

@@ -78,6 +78,8 @@ jobs:
       run: |
         arduino-cli lib install ${{ env.ARDUINO_LIBS }}
         arduino-cli lib list
+        # remove rp2040 built-in SdFat since it conflicts with SdFat - Adafruit's fork
+        rm -rf ~/.arduino15/packages/arduino/hardware/rp2040/*/libraries/SdFat
 
     - name: test platforms
       run: python3 ci/build_platform.py ${{ matrix.arduino-platform }}