Include messages to standard error, this to make the log complete

[Tasteful]

Fixes: #56

[CLAassistant]

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[kzu]

Wouldn't this make every report from the run result in output written to the error stream? Is that intentional?

[Tasteful]

In the console you have two different output streams, the one that is named output and the one that usual is named as error and if we not forwarding both stream from the backend process we will miss information that can be good to include to find why test ar failing.

the output stream is also the one that you can use with the cmd > file.txt to write the output to a file or variable="$(cmd)" to set the output into a variable and in the later case it's important that error messages are written to the error, otherwise the info is set into the variable and it's very hard to recognize any errors.

So with this change we are collecting both the error and output stream and forward them to the reporter that will be the output stream. The reason I decided to pipe both of them into the output stream is that runner like devops agent thread data on the error stream as errors and in this case we dont want the execution terminate because the test in most case will work in the retry and then it's not an error any more.