Add linux support for GitHub Action build

Author: calvinballing

Gemfile.lock

@@ -12,11 +12,19 @@ GEM
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
+    ffi (1.17.2)
     ffi (1.17.2-x64-mingw-ucrt)
+    ffi (1.17.2-x86_64-linux-gnu)
     forwardable-extended (2.6.0)
+    google-protobuf (4.33.0)
+      bigdecimal
+      rake (>= 13)
     google-protobuf (4.33.0-x64-mingw-ucrt)
       bigdecimal
       rake (>= 13)
+    google-protobuf (4.33.0-x86_64-linux-gnu)
+      bigdecimal
+      rake (>= 13)
     http_parser.rb (0.8.0)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
@@ -74,8 +82,13 @@ GEM
     rmagick (4.3.0)
     rouge (4.6.1)
     safe_yaml (1.0.5)
+    sass-embedded (1.93.2)
+      google-protobuf (~> 4.31)
+      rake (>= 13)
     sass-embedded (1.93.2-x64-mingw-ucrt)
       google-protobuf (~> 4.31)
+    sass-embedded (1.93.2-x86_64-linux-gnu)
+      google-protobuf (~> 4.31)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     tzinfo (2.0.6)
@@ -86,7 +99,9 @@ GEM
     webrick (1.9.1)
 
 PLATFORMS
+  ruby
   x64-mingw-ucrt
+  x86_64-linux
 
 DEPENDENCIES
   jekyll (~> 4.0)