Bump html-proofer from 3.19.2 to 4.3.0#9

dependabot[bot] wants to merge 1 commit intomasterbullox/hackercouch:masterfrom

dependabot/bundler/html-proofer-4.3.0bullox/hackercouch:dependabot/bundler/html-proofer-4.3.0Copy head branch name to clipboard