More robust clean up after unexpected docgen process exits. #8260
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temp/
json dir before every run.The cleanup process used to run in a "finally" block which is fine for catching errors caused by the specific code but doesn't account for a SIGINT or some other unexpected interruption.
I think I put enough checks in the cleanup code to make sure the steps don't error but I also wrapped it in a try/catch just in case with a warning to watch out for changed files.