Remove warning on Microsoft.EntityFrameworkCore.Design dependency conflicts

[lauraneto]

📋 Description

The issue mentioned is no longer present in v17, and can therefore be removed from the docs.

📎 Related Issues (if applicable)

✅ Contributor Checklist

I've followed the Umbraco Documentation Style Guide and can confirm that:

• Code blocks are correctly formatted.
• Sentences are short and clear (preferably under 25 words).
• Passive voice and first-person language (“we”, “I”) are avoided.
• Relevant pages are linked.
• All links work and point to the correct resources.
• Screenshots or diagrams are included if useful.
• Any code examples or instructions have been tested.
• Typos, broken links, and broken images are fixed.

Product & Version (if relevant)

17.0.0

Deadline (if relevant)

Ideally it should be published along with the rest of the v17 docs, but not urgent.

[eshanrnh]

Thanks for the PR, @lauraneto 🙌