Add more context to the GH E2E Test Failure/Tracing comment

[fschade]

Now that we have tracing results posted to gh it would be helpful to see more context regarding the trace.

as an example if you have a look to #6257 (comment) its hard to understand:

• which feature is the trace for?
• which of the traces failed?
• what backend did fail?
• is it a failing comment or just info ([whit-tracing] gets posted even without any failing step)

[pascalwengerter]

@fschade @ScharfViktor is this done / what's the definition of done here? :)

[fschade]

this is done, thanks for having an eye on it 💋