Insert OpenTelemetry phase before Setup

[rolaca11]

Fixes #13237

The root cause of the issue is that the tracing context is applied too late in the pipeline (Monitoring phase). I moved it before the Setup phase so that the tracing setup becomes the first thing that happens during processing.

The Monitoring phase is still important because it allows us to check if the call finished without errors. If this got moved to the Setup phase along with the tracing setup, it'd mean that exception handling in CallFailed hooks would mask the error, and it wouldn't be reported.

[linux-foundation-easycla]

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• ✅ login: rolaca11 (7d93824, 0669b69, bffa2a9, 3d6ae40, 0e962cc)

[rolaca11]

I noticed an issue, where the Span status isn't set in case of an error

[rolaca11]

Fixed

[laurit]

@rolaca11 would it be possible to add a regression test for this?
@e5l could you check whether this makes sense?

[e5l]

LGTM

[rolaca11]

I expanded one of the current test cases so that it'd fail on master, but pass with this PR. I don't like that I needed to install the plugin where I did, but I didn't find a better place for it. If you have any suggestions, pls fire away