Show timeline of called_process

[superstar54]

In the while zone, tasks repeat several times, however, in the timeline it only shows the time for the last iteration of the task. As show below, there is some missing info between add1 and add2.

This PR adds the called_process option. Switching to this option, it will show the timeline for all the processes that called by the WorkGraph:

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 77.27273% with 5 lines in your changes missing coverage. Please review.

Project coverage is 79.37%. Comparing base (5937b88) to head (15069d6).
Report is 35 commits behind head on main.

Files	Patch %	Lines
aiida_workgraph/utils/__init__.py	77.27%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #238      +/-   ##
==========================================
+ Coverage   75.75%   79.37%   +3.62%     
==========================================
  Files          70       62       -8     
  Lines        4615     4567      -48     
==========================================
+ Hits         3496     3625     +129     
+ Misses       1119      942     -177     

Flag	Coverage Δ
python-3.11	79.24% <77.27%> (+3.57%)	⬆️
python-3.12	79.26% <77.27%> (?)
python-3.9	79.30% <77.27%> (+3.57%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[superstar54]

Hi @agoscinski , the frontend test caught a bug in this PR. https://github.com/aiidateam/aiida-workgraph/actions/runs/10441999297/job/28914107364

Very helpful!