Crawlee script support uses file system

[rumca-js]

Crawlee uses file system to store some data. This might lead to errors if multiple processes use storage / crawlee os.environ["CRAWLEE_STORAGE_DIR"] = "./storage/{}".format(os.getpid())

I changed it so new instance of script uses a different dir, but there should be some point of time when this is cleared.

Should be cleared:

• when django starts
• ?