Adds workunit for interactive processes. (#17544)
Adds workunit for interactive processes. (#17544)

While working on #16825, we discovered that parts of the trace for our `experimental_run_shell_command` were not captured. That's because there was no work unit preserved.

This adds such a work unit.
pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants