add platform

Gemfile.lock

@@ -9,9 +9,10 @@ GEM
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
+    ffi (1.16.3)
     ffi (1.16.3-x64-mingw-ucrt)
     forwardable-extended (2.6.0)
-    google-protobuf (3.25.2-x64-mingw-ucrt)
+    google-protobuf (3.25.2)
     http_parser.rb (0.8.0)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
@@ -63,6 +64,10 @@ GEM
     safe_yaml (1.0.5)
     sass-embedded (1.70.0-x64-mingw-ucrt)
       google-protobuf (~> 3.25)
+    sass-embedded (1.70.0-x86_64-darwin)
+      google-protobuf (~> 3.25)
+    sass-embedded (1.70.0-x86_64-linux-gnu)
+      google-protobuf (~> 3.25)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     tzinfo (2.0.6)
@@ -75,6 +80,8 @@ GEM
 
 PLATFORMS
   x64-mingw-ucrt
+  x86_64-darwin-19
+  x86_64-linux
 
 DEPENDENCIES
   http_parser.rb (~> 0.6.0)
@@ -84,6 +91,7 @@ DEPENDENCIES
   tzinfo (>= 1, < 3)
   tzinfo-data
   wdm (~> 0.1.1)
+  webrick (~> 1.8)
 
 BUNDLED WITH
    2.5.6