Bump prismjs from 1.21.0 to 1.23.0 in /packages/uvalib-footer

Bumps [prismjs](https://github.com/PrismJS/prism) from 1.21.0 to 1.23.0.
- [Release notes](https://github.com/PrismJS/prism/releases)
- [Changelog](https://github.com/PrismJS/prism/blob/master/CHANGELOG.md)
- [Commits](PrismJS/prism@v1.21.0...v1.23.0)

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

Author: dependabot[bot]