build(deps-dev): update html-proofer requirement from ~> 3.18 to ~> 4.4 (#1217)

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)
- [Changelog](https://github.com/gjtorikian/html-proofer/blob/main/CHANGELOG.md)
- [Commits](gjtorikian/html-proofer@v3.18.0...v4.4.3)

And updates `html-proofer` arguments

---
updated-dependencies:
- dependency-name: html-proofer
  dependency-type: direct:development
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Gemfile

@@ -5,7 +5,7 @@ source "https://rubygems.org"
 gemspec
 
 group :test do
-  gem "html-proofer", "~> 3.18"
+  gem "html-proofer", "~> 4.4"
 end
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem

tools/test

@@ -62,9 +62,8 @@ main() {
 
   # test
   bundle exec htmlproofer "$SITE_DIR" \
-    --disable-external \
-    --check-html \
-    --allow_hash_href
+    --disable-external=true \
+    --ignore-urls "/^http:\/\/127.0.0.1/,/^http:\/\/0.0.0.0/,/^http:\/\/localhost/"
 }
 
 while (($#)); do