Bump html-proofer from 3.19.3 to 4.4.0 (#424)

Bumps [html-proofer](https://github.com/gjtorikian/html-proofer) from 3.19.3 to 4.4.0.
- [Release notes](https://github.com/gjtorikian/html-proofer/releases)
- [Changelog](https://github.com/gjtorikian/html-proofer/blob/main/CHANGELOG.md)
- [Commits](gjtorikian/html-proofer@v3.19.3...v4.4.0)

---
updated-dependencies:
- dependency-name: html-proofer
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

Gemfile.lock

@@ -15,14 +15,15 @@ GEM
     ffi (1.15.5)
     ffi (1.15.5-x64-mingw32)
     forwardable-extended (2.6.0)
-    html-proofer (3.19.3)
+    html-proofer (4.4.0)
       addressable (~> 2.3)
       mercenary (~> 0.3)
-      nokogiri (~> 1.12)
-      parallel (~> 1.3)
+      nokogiri (~> 1.13)
+      parallel (~> 1.10)
       rainbow (~> 3.0)
       typhoeus (~> 1.3)
       yell (~> 2.0)
+      zeitwerk (~> 2.5)
     http_parser.rb (0.8.0)
     i18n (1.9.1)
       concurrent-ruby (~> 1.0)
@@ -62,18 +63,18 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
-    mini_portile2 (2.6.1)
-    nokogiri (1.12.5)
-      mini_portile2 (~> 2.6.1)
+    mini_portile2 (2.8.0)
+    nokogiri (1.13.8)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.12.5-x64-mingw32)
+    nokogiri (1.13.8-x64-mingw32)
       racc (~> 1.4)
-    parallel (1.21.0)
+    parallel (1.22.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
+    public_suffix (4.0.7)
     racc (1.6.0)
-    rainbow (3.0.0)
+    rainbow (3.1.1)
     rake (13.0.6)
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
@@ -96,6 +97,7 @@ GEM
     unicode-display_width (1.8.0)
     webrick (1.7.0)
     yell (2.2.2)
+    zeitwerk (2.6.0)
 
 PLATFORMS
   ruby