Make all errors on an unsupported platform `ConfigurationError`s #4608

Job	Run time
Diagnostic export (macos-latest, linked)	2m 14s
Diagnostic export (ubuntu-latest, linked)	1m 17s
Diagnostic export (ubuntu-latest, nightly-latest)	1m 20s
Diagnostic export (macos-latest, nightly-latest)	2m 8s
Diagnostic export (windows-latest, linked)	3m 25s
Diagnostic export (windows-latest, nightly-latest)	2m 57s
	13m 21s

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