Upgrade jekyll to 4.4.1 (#598)

* Upgrade jekyll to 4.4.1

* fixup

Author: HyukjinKwon

Gemfile

@@ -17,7 +17,7 @@
 
 source "https://rubygems.org"
 
-gem "jekyll", "4.2.0"
+gem "jekyll", "4.4.1"
 gem "rouge", "3.26.0"
 
 gem "webrick", "~> 1.8.2"

Gemfile.lock

@@ -3,36 +3,43 @@ GEM
   specs:
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
+    base64 (0.2.0)
     colorator (1.1.0)
-    concurrent-ruby (1.3.4)
+    concurrent-ruby (1.3.5)
+    csv (3.3.2)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
     ffi (1.17.1)
     forwardable-extended (2.6.0)
     http_parser.rb (0.8.0)
-    i18n (1.14.6)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    jekyll (4.2.0)
+    jekyll (4.4.1)
       addressable (~> 2.4)
+      base64 (~> 0.2)
       colorator (~> 1.0)
+      csv (~> 3.0)
       em-websocket (~> 0.5)
       i18n (~> 1.0)
-      jekyll-sass-converter (~> 2.0)
+      jekyll-sass-converter (>= 2.0, < 4.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 2.3)
+      json (~> 2.6)
+      kramdown (~> 2.3, >= 2.3.1)
       kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
-      mercenary (~> 0.4.0)
+      mercenary (~> 0.3, >= 0.3.6)
       pathutil (~> 0.9)
-      rouge (~> 3.0)
+      rouge (>= 3.0, < 5.0)
       safe_yaml (~> 1.0)
-      terminal-table (~> 2.0)
+      terminal-table (>= 1.8, < 4.0)
+      webrick (~> 1.7)
     jekyll-sass-converter (2.2.0)
       sassc (> 2.0.1, < 3.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
+    json (2.10.2)
     kramdown (2.5.1)
       rexml (>= 3.3.9)
     kramdown-parser-gfm (1.1.0)
@@ -48,21 +55,21 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.4.0)
+    rexml (3.4.1)
     rouge (3.26.0)
     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)
-    unicode-display_width (1.8.0)
+    terminal-table (3.0.2)
+      unicode-display_width (>= 1.1.1, < 3)
+    unicode-display_width (2.6.0)
     webrick (1.8.2)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  jekyll (= 4.2.0)
+  jekyll (= 4.4.1)
   rouge (= 3.26.0)
   webrick (~> 1.8.2)