Fix auto-detection of extractors that aren't languages #4642

Job	Run time
Diagnostic export (macos-latest, linked)	2m 17s
Diagnostic export (ubuntu-latest, linked)	1m 25s
Diagnostic export (macos-latest, nightly-latest)	2m 9s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 23s
Diagnostic export (windows-latest, nightly-latest)	3m 16s
Diagnostic export (windows-latest, linked)	3m 25s
	13m 55s

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