Vale integration

[daniel-parasoft]

This adds parsing support for results produced by vale (https://vale.sh/)
Vale is a static checker for English prose.

Testing done

Junit test added.
We're also using this in our own infrastructure.

Submitter checklist

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• Ensure that the pull request title represents the desired changelog entry
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[uhafner]

Thanks for your PR!

Just some minor things...

[uhafner]

Thanks for your PR!