Clean up the database if it will be uploaded #4621

Job	Run time
Diagnostic export (ubuntu-latest, linked)	1m 21s
Diagnostic export (macos-latest, nightly-latest)	1m 28s
Diagnostic export (macos-latest, linked)	1m 41s
Diagnostic export (windows-latest, nightly-latest)	3m 9s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 23s
Diagnostic export (windows-latest, linked)	2m 53s
	11m 55s

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