Overlay: add database upload size limit #4702

Job	Run time
Diagnostic export (ubuntu-latest, linked)	1m 3s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 5s
Diagnostic export (windows-latest, nightly-latest)	2m 35s
Diagnostic export (macos-latest, linked)	1m 3s
Diagnostic export (windows-latest, linked)	3m 6s
Diagnostic export (macos-latest, nightly-latest)	1m 6s
	9m 58s

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