## Description
<!-- Describe the big picture of your changes to communicate to the
maintainers
why we should accept this pull request. -->
https://github.com/neovim/neovim/pull/31959 has introduced virtual lines
for showing diagnostics. If this is enabled (default value), messages
from lazy.nvim, such as `update available` are shown as virtual lines in
addition to virtual texts.
## Related Issue(s)
<!--
If this PR fixes any issues, please link to the issue here.
- Fixes #<issue_number>
-->
## Screenshots
<!-- Add screenshots of the changes if applicable. -->
* ***before***
- <img width="592" alt="スクリーンショット 2025-01-27 16 42 27"
src="https://github.com/user-attachments/assets/6994ac84-4862-4532-81ee-80f4015181e5"
/>
* ***after***
- <img width="585" alt="スクリーンショット 2025-01-27 16 42 58"
src="https://github.com/user-attachments/assets/d19f63dc-fb6d-434f-89cf-a0bc49d31c5f"
/>
f15a93907d