chore: update packages (#184)

Co-authored-by: DongGeon Lee <[email protected]>

docs/GemFile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.0.4.6)
+    activesupport (6.0.4.7)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
@@ -14,8 +14,7 @@ GEM
       execjs
     coffee-script-source (1.11.1)
     colorator (1.1.0)
-    commonmarker (0.17.13)
-      ruby-enum (~> 0.5)
+    commonmarker (0.23.4)
     concurrent-ruby (1.1.9)
     dnsruby (1.61.9)
       simpleidn (~> 0.1)
@@ -54,12 +53,12 @@ GEM
     ffi (1.15.5-x64-mingw32)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
-    github-pages (223)
+    github-pages (225)
       github-pages-health-check (= 1.17.9)
       jekyll (= 3.9.0)
       jekyll-avatar (= 0.7.0)
       jekyll-coffeescript (= 1.1.1)
-      jekyll-commonmark-ghpages (= 0.1.6)
+      jekyll-commonmark-ghpages (= 0.2.0)
       jekyll-default-layout (= 0.1.4)
       jekyll-feed (= 0.15.1)
       jekyll-gist (= 1.5.0)
@@ -73,7 +72,7 @@ GEM
       jekyll-relative-links (= 0.6.1)
       jekyll-remote-theme (= 0.4.3)
       jekyll-sass-converter (= 1.5.2)
-      jekyll-seo-tag (= 2.7.1)
+      jekyll-seo-tag (= 2.8.0)
       jekyll-sitemap (= 1.4.0)
       jekyll-swiss (= 1.0.0)
       jekyll-theme-architect (= 0.2.0)
@@ -137,12 +136,12 @@ GEM
     jekyll-coffeescript (1.1.1)
       coffee-script (~> 2.2)
       coffee-script-source (~> 1.11.1)
-    jekyll-commonmark (1.3.1)
-      commonmarker (~> 0.14)
-      jekyll (>= 3.7, < 5.0)
-    jekyll-commonmark-ghpages (0.1.6)
-      commonmarker (~> 0.17.6)
-      jekyll-commonmark (~> 1.2)
+    jekyll-commonmark (1.4.0)
+      commonmarker (~> 0.22)
+    jekyll-commonmark-ghpages (0.2.0)
+      commonmarker (~> 0.23.4)
+      jekyll (~> 3.9.0)
+      jekyll-commonmark (~> 1.4.0)
       rouge (>= 2.0, < 4.0)
     jekyll-default-layout (0.1.4)
       jekyll (~> 3.0)
@@ -177,7 +176,7 @@ GEM
       rubyzip (>= 1.3.0, < 3.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-seo-tag (2.7.1)
+    jekyll-seo-tag (2.8.0)
       jekyll (>= 3.8, < 5.0)
     jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
@@ -266,8 +265,6 @@ GEM
       ffi (~> 1.0)
     rexml (3.2.5)
     rouge (3.26.0)
-    ruby-enum (0.9.0)
-      i18n
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
     safe_yaml (1.0.5)
@@ -290,8 +287,8 @@ GEM
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.8)
-    unf_ext (0.0.8-x64-mingw32)
+    unf_ext (0.0.8.1)
+    unf_ext (0.0.8.1-x64-mingw32)
     unicode-display_width (1.8.0)
     wdm (0.1.1)
     yell (2.2.2)