Update HTML Proofer

Author: PeterJCLaw

Gemfile.lock

@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
     concurrent-ruby (1.1.8)
     em-websocket (0.5.2)
@@ -15,14 +15,15 @@ GEM
     ffi (1.15.5)
     ffi (1.15.5-x64-mingw32)
     forwardable-extended (2.6.0)
-    html-proofer (3.19.2)
+    html-proofer (4.4.3)
       addressable (~> 2.3)
       mercenary (~> 0.3)
-      nokogumbo (~> 2.0)
-      parallel (~> 1.3)
+      nokogiri (~> 1.13)
+      parallel (~> 1.10)
       rainbow (~> 3.0)
       typhoeus (~> 1.3)
       yell (~> 2.0)
+      zeitwerk (~> 2.5)
     http_parser.rb (0.6.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
@@ -58,19 +59,17 @@ GEM
     neat (3.0.0)
       sass (~> 3.4)
       thor (~> 0.19)
-    nokogiri (1.13.6)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.6-x64-mingw32)
+    nokogiri (1.13.9-x64-mingw32)
       racc (~> 1.4)
-    nokogumbo (2.0.5)
-      nokogiri (~> 1.8, >= 1.8.4)
-    parallel (1.21.0)
+    parallel (1.22.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     racc (1.6.0)
-    rainbow (3.0.0)
+    rainbow (3.1.1)
     rake (12.3.3)
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
@@ -88,6 +87,7 @@ GEM
       ethon (>= 0.9.0)
     wdm (0.1.1)
     yell (2.2.2)
+    zeitwerk (2.6.1)
 
 PLATFORMS
   ruby