fix(core): run-commands should fail when a command in serial fails

[FrozenPandaz]

Current Behavior

Running a target that uses run-commands to run commands serially will not error if a command errors.

For example, the Nx build succeeds even when one package fails to build which as a result causes it to be cached as a success.

Expected Behavior

Running a target that uses run-commands to run commands serially will error if a command errors.

Related Issue(s)

Fixes #

[nx-cloud]

Nx Cloud Report

CI ran the following commands for commit d236502. Click to see the status, the terminal output, and the build insights.

Status	Command	Start Time
	nx run-many --target=build --all --parallel	1/11/2021, 3:32:24 PM
	nx run-many --target=e2e --projects=e2e-angular	1/11/2021, 3:35:18 PM
	nx run-many --target=e2e --projects=e2e-cypress,e2e-jest	1/11/2021, 3:34:30 PM
	nx run-many --target=e2e --projects=e2e-next	1/11/2021, 3:33:01 PM
	nx run-many --target=e2e --projects=e2e-node	1/11/2021, 3:34:14 PM
	nx run-many --target=e2e --projects=e2e-nx-plugin	1/11/2021, 3:34:31 PM
	nx run-many --target=e2e --projects=e2e-react	1/11/2021, 3:30:45 PM
	nx run-many --target=e2e --projects=e2e-web,e2e-linter,e2e-storybook	1/11/2021, 3:33:52 PM
	nx run-many --target=e2e --projects=e2e-workspace	1/11/2021, 3:28:57 PM

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