build: bump html-proofer from 3.11.1 to 3.12.0 in /docs
build: bump html-proofer from 3.11.1 to 3.12.0 in /docs

Bumps [html-proofer](https://github.com/gjtorikian/html-proofer) from 3.11.1 to 3.12.0.
- [Release notes](https://github.com/gjtorikian/html-proofer/releases)
- [Commits](https://github.com/gjtorikian/html-proofer/compare/v3.11.1...v3.12.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
EricFromCanada/brew,claui/brew,claui/brew,claui/brew,sjackman/homebrew,reitermarkus/brew,MikeMcQuaid/brew,sjackman/homebrew,nandub/brew,nandub/brew,JCount/brew,mahori/brew,MikeMcQuaid/brew,konqui/brew,konqui/brew,vitorgalvao/brew,EricFromCanada/brew,sjackman/homebrew,reitermarkus/brew,konqui/brew,mahori/brew,nandub/brew,reitermarkus/brew,Homebrew/brew,reitermarkus/brew,JCount/brew,nandub/brew,EricFromCanada/brew,vitorgalvao/brew,vitorgalvao/brew,claui/brew,MikeMcQuaid/brew,konqui/brew,vitorgalvao/brew,mahori/brew,MikeMcQuaid/brew,JCount/brew,sjackman/homebrew,Homebrew/brew,mahori/brew,EricFromCanada/brew,Homebrew/brew,Homebrew/brew,JCount/brew