Because otherwise when piping optput to `tee` the exit code that
affects the result of the whole `sh` call is the last command in the pipe.
Signed-off-by: Jakub Sokołowski <jakub@status.im>
This way we can make PRs depend only on successful tests, and not whole
builds for all platforms, which take 10 minutes or more.
Signed-off-by: Jakub Sokołowski <jakub@status.im>