Bump html-proofer from 3.18.0 to 3.18.3
Bump html-proofer from 3.18.0 to 3.18.3

Bumps [html-proofer](https://github.com/gjtorikian/html-proofer) from 3.18.0 to 3.18.3.
- [Release notes](https://github.com/gjtorikian/html-proofer/releases)
- [Commits](https://github.com/gjtorikian/html-proofer/compare/v3.18.0...v3.18.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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