Fix for adding targets and actors to a task

[Lainow]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• This change requires a documentation update.

Description

• It fixes !40236
• Here is a brief description of what this PR does
  No action occurs when attempting to add a target or actor to a task in GLPI inventory.

Screenshots (if appropriate):

[stonebuzz]

can you adapt changelog.md ?