Use testbuild -G ("git clean" instead of "make distclean")

Author: yamt

.github/workflows/build.yml

@@ -67,4 +67,4 @@ jobs:
       with:
         run: |
           cd testing
-          ./cibuild.sh -x testlist/${{matrix.boards}}.dat
+          ./cibuild.sh -x -G testlist/${{matrix.boards}}.dat