Clean up the database if it will be uploaded #4622

Job	Run time
Diagnostic export (macos-latest, linked)	1m 39s
Diagnostic export (ubuntu-latest, linked)	1m 24s
Diagnostic export (macos-latest, nightly-latest)	2m 2s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 21s
Diagnostic export (windows-latest, nightly-latest)	3m 35s
Diagnostic export (windows-latest, linked)	3m 7s
	13m 8s

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