* scons cache in ci * clean up cache * fix cleanup step * non fixed key * quote old-commit-hash: 7921759bbe99dec937f4c6cd54654f276a7015d6
* scons cache in ci * clean up cache * fix cleanup step * non fixed key * quote old-commit-hash: 7921759bbe99dec937f4c6cd54654f276a7015d6