Make all errors on an unsupported platform `ConfigurationError`s #7318

Job	Run time
Split workflow (macos-latest, nightly-latest)	1m 45s
Split workflow (macos-latest, linked)	3m 21s
Split workflow (ubuntu-latest, linked)	1m 26s
Split workflow (ubuntu-latest, nightly-latest)	1m 40s
Split workflow (ubuntu-latest, default)	1m 29s
Split workflow (macos-latest, default)	1m 55s
	11m 36s

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