Add htmlproofer in Gemfile.lock

In 0317303, I've added `htmlproofer` to
`Gemfile`, but did not commit the changes to `Gemfile.lock`. This commit
adds it back.

Author: natikgadzhi

Gemfile.lock

@@ -1,19 +1,44 @@
 GEM
   remote: https://rubygems.org/
   specs:
+    Ascii85 (1.1.0)
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
+    afm (0.2.2)
+    async (2.6.4)
+      console (~> 1.10)
+      fiber-annotation
+      io-event (~> 1.1)
+      timers (~> 4.1)
     colorator (1.1.0)
     concurrent-ruby (1.1.10)
+    console (1.23.2)
+      fiber-annotation
+      fiber-local
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
+    ethon (0.16.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
     ffi (1.15.5)
+    fiber-annotation (0.2.0)
+    fiber-local (1.0.0)
     forwardable-extended (2.6.0)
+    hashery (2.1.2)
+    html-proofer (5.0.8)
+      addressable (~> 2.3)
+      async (~> 2.1)
+      nokogiri (~> 1.13)
+      pdf-reader (~> 2.11)
+      rainbow (~> 3.0)
+      typhoeus (~> 1.3)
+      yell (~> 2.0)
+      zeitwerk (~> 2.5)
     http_parser.rb (0.8.0)
     i18n (1.10.0)
       concurrent-ruby (~> 1.0)
+    io-event (1.3.2)
     jekyll (4.2.2)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -44,26 +69,44 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
+    nokogiri (1.15.4-arm64-darwin)
+      racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
+    pdf-reader (2.11.0)
+      Ascii85 (~> 1.0)
+      afm (~> 0.2.1)
+      hashery (~> 2.0)
+      ruby-rc4
+      ttfunk
     public_suffix (4.0.7)
+    racc (1.7.1)
+    rainbow (3.1.1)
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rexml (3.2.5)
     rouge (3.28.0)
+    ruby-rc4 (0.1.5)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
+    timers (4.3.5)
+    ttfunk (1.7.0)
+    typhoeus (1.4.0)
+      ethon (>= 0.9.0)
     unicode-display_width (1.8.0)
     webrick (1.7.0)
+    yell (2.2.2)
+    zeitwerk (2.6.11)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  html-proofer
   jekyll (~> 4.2.1)
   jekyll-redirect-from
   webrick (~> 1.7)