refactor: fix script

Author: Samat Gaynutdinov

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

@@ -15,5 +15,5 @@ docker cp "$PROJECT_DIR/integration-tests/c-example/" $PORTABLE_CONTAINER_NAME:/
 
 # Jump to container and check portability
 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\""
+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"