ci: GPU-CI for Exa.TrkX plugin

[benjaminhuth]

This PR tries to get the GPU-CI for the Exa.TrkX plugin working.

For now the ONNX-model-files are retrieved by the job via HTTP.

[codecov]

Codecov Report

Merging #1224 (d335c4e) into main (6e1fd31) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1224   +/-   ##
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  Coverage   47.94%   47.94%           
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  Files         373      373           
  Lines       19495    19495           
  Branches     9152     9152           
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  Hits         9347     9347           
  Misses       3817     3817           
  Partials     6331     6331           

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[paulgessinger]

Would it be useful to add an output hash check on the output root file? That would maybe give us a heads-up if it changes? Doesn't have to be through pytest, but could be. This can also be done in a separate PR to get this in sooner.

[benjaminhuth]

I think since the current ONNX files are still the "dummy" ones, that do not produce useful output. Once this is fixed, we should definitively add the hash checks, but I would do this in a follow-up PR

[paulgessinger]

Ok. I just fixed a bug that made rerequested check suites get the wrong clone url. Can you push an empty commit to retrigger the CI, @benjaminhuth?

[paulgessinger]

Ok let's go.