/usr/bin/run_task: 6: set: Illegal option -o pipefail when running on Ubuntu 20.04

```
# rave at rave-desktop in ~/fargate-auto-process on git:main ✖︎ [18:34:17]
→ run_task
/usr/bin/run_task: 6: set: Illegal option -o pipefail
```
I end up commenting out the `set -euo pipefail` line so that this runs

Start by locating the script that installs or provides /usr/bin/run_task and inspect its shell invocation around line 6. Reproduce the command on Ubuntu 20.04, then verify that run_task completes without requiring the `set -euo pipefail` line to be commented out.

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