Premake buildactions always return status code 0

[qaisjp]

Describe the bug

install_cef failed to download CEF yet the build step still succeeds https://github.com/multitheftauto/mtasa-blue/runs/507985212#step:6:6

this is because our buildactions always return status code 0

To reproduce

Edit the install_cef buildaction and change the mirror.mtasa.com url to some garbage. Run

Expected behaviour

exit with status code 1 if an error occurs.

Screenshots

Version

v1.5.7 master 4b7432e

Additional context

this issue almost certainly exists in other places too. maybe some of our non-lua scripts too.