USE -> HOME in test.sh

ci/scripts/test.sh

@@ -155,7 +155,7 @@ if [ "$RUN_EXAMPLES" = true ]; then
 fi
 
 if [ "$HAS_CACHE_DIR" = true ]; then
-    cp -r ${USER}/.cache/* $CACHE_DIR
+    cp -r ${HOME}/.cache/* $CACHE_DIR
     find "${CACHE_DIR}" -name '*.lock' -delete
 fi