Fix Spectacular error on SelectProcessFailures

When running any manage.py command, the following error appears:

Error #0: using @extend_schema on viewset class SelectProcessFailures with parameters operation_id or operation will most likely result in a broken schema.

This is not causing any error in CI because of a bug in Spectacular that got fixed in a later release that we are not at yet.

This is also not causing any actual trouble because this endpoint only has one HTTP method; it would cause duplicate operation IDs if there was more than just POST.

changed milestone to %Arkindex 1.4.2

requested review from @babadie

assigned to @erwanrouchet

added 6 commits

• 5d681f10...a73b05d1 - 5 commits from branch master
• c7796303 - Fix Spectacular error on SelectProcessFailures

Compare with previous version

enabled an automatic merge when the pipeline for c7796303 succeeds

merged