[skip ci] workflow test

Author: chihosin

.github/workflows/build-board-custom.yml

@@ -54,6 +54,7 @@ jobs:
     - name: Set up repository
       run: |
         rm -rf ~/runner/_work/circuitpython
+        mkdir -p "$GITHUB_WORKSPACE"
         git clone --filter=tree:0 https://github.com/adafruit/circuitpython.git $GITHUB_WORKSPACE
     - name: Checkout head / tag
       env: