Bump themes/hugo-book from 2c8c093 to 45d9042

Bumps [themes/hugo-book](https://github.com/alex-shpak/hugo-book) from `2c8c093` to `45d9042`.
- [Release notes](https://github.com/alex-shpak/hugo-book/releases)
- [Commits](alex-shpak/hugo-book@2c8c093...45d9042)

---
updated-dependencies:
- dependency-name: themes/hugo-book
  dependency-version: 45d90424abafa90ccf4c340f926d9422adb4faf3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]