chore(deps): bump bl from 1.2.2 to 1.2.3 in /website

Bumps [bl](https://github.com/rvagg/bl) from 1.2.2 to 1.2.3.
- [Release notes](https://github.com/rvagg/bl/releases)
- [Commits](rvagg/bl@v1.2.2...v1.2.3)

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