Graceful Cleanup is a problem for clients that continuously profile

https://github.com/firebase/firebase-tools/blob/d162aec2334c29d3a1ad1a0ee91448b8b0ff8346/src/profiler.ts#L14

The profiler previously used to clean up its tmp files after report generation. Now it uses graceful cleanup means it doesn't clean up until the process exits.

This is a problem because this assumes that the profiler is run adhoc. We run the profiler continuously and then export that data to big query. With the introduction of this change our service now runs out of memory since the tmp folder is never cleaned.

This change was introduced here: https://github.com/firebase/firebase-tools/pull/2804