Update html-proofer requirement from ~> 3.12.0 to ~> 3.13.0
Update html-proofer requirement from ~> 3.12.0 to ~> 3.13.0

Updates the requirements on [html-proofer](https://github.com/gjtorikian/html-proofer) to permit the latest version.
- [Release notes](https://github.com/gjtorikian/html-proofer/releases)
- [Commits](https://github.com/gjtorikian/html-proofer/compare/v3.12.0...v3.13.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
berviantoleo/berviantoleo.github.io,berviantoleo/berviantoleo.github.io,berviantoleo/berviantoleo.github.io,berviantoleo/berviantoleo.github.io