Add test-output.xml to the .gitignore

[kvnkho]

Running the tests generates a test-output.xml file that gets added in it. We don't want this so we may want to add this specific filename to the .gitignore.

Alternatively, we can consider adding .xml to the gitignore?

[MthwRobinson]

It test-output.xml a pytest thing? Don't think I've seen that when I've run the tests locally. In any case, no issues adding that to .gitignore. We can't add *.xml because the Jinja templates have .xml file extensions.

[kvnkho]

This only showed up for me during a failed test. Have you had failed tests? I didn't have a library so it failed.

Adding details to replicate.

1. Only install base.txt requirements. This will make sure you lack the dev requirements.
2. Run make test. This should give an output test-output.xml file which shows an error log.