Bump lit-html from 2.2.6 to 2.5.0 in /assets

Bumps [lit-html](https://github.com/lit/lit/tree/HEAD/packages/lit-html) from 2.2.6 to 2.5.0.
- [Release notes](https://github.com/lit/lit/releases)
- [Changelog](https://github.com/lit/lit/blob/main/packages/lit-html/CHANGELOG.md)
- [Commits](https://github.com/lit/lit/commits/[email protected]/packages/lit-html)

---
updated-dependencies:
- dependency-name: lit-html
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>