Resolve "Universe plot creator fails with parameter space dimension named `tolerance`"

This was as simple as passing the indexers directly as positional argument instead of unpacking them.

Something to double-check?

Nope.

Can this MR be accepted?

• Implementation ready
• Tests added or adjusted
• Documentation extended or updated

• Code quality
  • Changes follow coding guidelines
  • Checked code coverage on new and adjusted code

• Ready for merging
  • Pipeline passes without warnings
  • History cleaned-up or squash option set
  • Changelog entry added (for version 0.13.4, will be cherry-picked to release branch)

Related issues

Closes #192 (closed)