Correct completion for non-arg FEEL built-ins

[nikku]

Proposed Changes

Bump to @bpmn-io/[email protected], correcting variable completion for non-arg FEEL built-ins:

Closes #4539

Checklist

To ensure you provided everything we need to look at your PR:

• Brief textual description of the changes present
• Visual demo attached
• Steps to try out present, i.e. using the @bpmn-io/sr tool
• Related issue linked via Closes {LINK_TO_ISSUE} or Related to {LINK_TO_ISSUE}

[github-actions]

This Pull Request targets develop branch, but contains fix commits.

Consider targeting main instead.

[barmac]

I verified that it works correctly in each editor 🚀