fix jekyll error

Gemfile.lock

@@ -83,7 +83,6 @@ GEM
       octokit (~> 4.0)
       public_suffix (>= 3.0, < 5.0)
       typhoeus (~> 1.3)
-    google-protobuf (3.19.4)
     html-pipeline (2.14.3)
       activesupport (>= 2)
       nokogiri (>= 1.4)
@@ -216,6 +215,8 @@ GEM
     nokogiri (1.13.10)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
+    nokogiri (1.13.10-x86_64-linux)
+      racc (~> 1.4)
     octokit (4.25.1)
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
@@ -234,8 +235,6 @@ GEM
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
-    sass-embedded (1.0.6)
-      google-protobuf (~> 3.19.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -258,11 +257,11 @@ GEM
 
 PLATFORMS
   ruby
+  x86_64-linux
 
 DEPENDENCIES
   github-pages (~> 228)
   rake
-  sass-embedded (~> 1.0)
 
 BUNDLED WITH
    1.17.3