Bump scale-info from 2.7.0 to 2.8.0 (#2768)

Bumps [scale-info](https://github.com/paritytech/scale-info) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/paritytech/scale-info/releases)
- [Changelog](https://github.com/paritytech/scale-info/blob/master/CHANGELOG.md)
- [Commits](https://github.com/paritytech/scale-info/compare/v2.7.0...v2.8.0)

---
updated-dependencies:
- dependency-name: scale-info
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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