Github cloud agent instrumentation is missing spans

https://github.com/plengauer/Thoth/actions/runs/26678311358/job/78634148835 <img width="2396" height="562" alt="Image" src="https://github.com/user-attachments/assets/d91dd5d7-44ba-4ce9-bbf2-bdf891bca041" /> <img width="2328" height="143" alt="Image" src="https://github.com/user-attachments/assets/4824e284-2891-467c-84bb-57f2ddb20878" /> as you can see on the pictures, the step that actually contains the agentic execution is not containing any spans. As you can see in the log output of a custom step that prints all scripts, the preemble to instrument is still not there. there is a custom instrumentation thats supposed to react to the unpacking of the scripts and then add `. otel.sh` at the start. but printing the scripts as ive done there shows it doesnt exist still. so im assuming something is still missing. verify the code of the action step that is always dumped in the log anyway in case of a shell action, and the instrumentaiton here, find the issue and fix it.