[fix] log plotter not crashing with ubuntu 20.4 in debug mode

For unknown reason, log plotter is crashing with ubuntu 20.04, but seems
to work when the ocaml tools are compiled with debug flag. This should
not slow down execution but produce bigger code.
A proper fix or replacement should still be found to this issue.

see #2621
8 jobs for master
Status Job ID Name Coverage
  Build
canceled #448
build

 
  Test
canceled #450
allowed to fail
code_quality

canceled #451
allowed to fail
container_scanning

canceled #452
allowed to fail
dependency_scanning

canceled #453
allowed to fail
license_management

canceled #454
allowed to fail
sast

canceled #449
test

 
  Dast
canceled #455
allowed to fail
dast