Treat missing pack errors as configuration errors #7312

Job	Run time
Packaging: Config file (windows-latest, default)	3m 34s
Packaging: Config file (macos-latest, linked)	1m 43s
Packaging: Config file (macos-latest, default)	1m 53s
Packaging: Config file (ubuntu-latest, default)	1m 29s
Packaging: Config file (ubuntu-latest, linked)	1m 30s
Packaging: Config file (macos-latest, nightly-latest)	2m 10s
Packaging: Config file (windows-latest, nightly-latest)	3m 32s
Packaging: Config file (windows-latest, linked)	3m 44s
Packaging: Config file (ubuntu-latest, nightly-latest)	1m 26s
	21m 1s

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