Fail `build.sh` if any command in it fails #4933

Job	Run time
Ruby analysis (ubuntu-latest, default)	48s
Ruby analysis (ubuntu-latest, nightly-latest)	45s
Ruby analysis (macos-latest, linked)	59s
Ruby analysis (macos-latest, nightly-latest)	51s
Ruby analysis (macos-latest, default)	50s
Ruby analysis (ubuntu-latest, linked)	49s
	5m 2s

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