refactor: fix script

Author: Samat Gaynutdinov

docker/action-scripts/check-portable-tests.sh

@@ -14,6 +14,6 @@ docker run -d --name $PORTABLE_CONTAINER_NAME $DOCKER_IMAGE_TAG
 docker cp "$PROJECT_DIR/integration-tests/c-example/" $PORTABLE_CONTAINER_NAME:/home/c-example
 
 # Jump to container and check portability
-REMOVE_CMD="rm -r /home/c-example/utbot_build"
+REMOVE_CMD="rm -r /home/c-example/build/utbot_build"
 RUN_TEST_CMD="env make -f /home/c-example/tests/lib/floats/floating_point_plain.mk run GTEST_FLAGS=\"--gtest_filter=*.plain_isnan_test_1\" clang=\"/usr/bin/clang-10\" clangxx=\"/usr/bin/clang++-10\" gtest=\"/gtest\""
 docker exec $PORTABLE_CONTAINER_NAME /bin/sh -c "$REMOVE_CMD && $RUN_TEST_CMD"