test: get stdout failure text before exit code

[ipapast]

This is a non functional change, just reordering the assertions in our iac acceptance tests.

So far, if a test fails - we will only see the exit code assertion and not the actual reason why.
This commit moves all exit code assertions from the top assertion to the bottom.
In this way we can see the stdout actual text first when a test fails. It will be even easier for checking it in CircleCI.

example before: