Bump jekyll from 3.3.1 to 3.6.3

Bumps [jekyll](https://github.com/jekyll/jekyll) from 3.3.1 to 3.6.3.
- [Release notes](https://github.com/jekyll/jekyll/releases)
- [Changelog](https://github.com/jekyll/jekyll/blob/master/History.markdown)
- [Commits](jekyll/jekyll@v3.3.1...v3.6.3)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Gemfile

@@ -9,7 +9,7 @@ ruby RUBY_VERSION
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem 'jekyll', '3.3.1'
+gem 'jekyll', '3.6.3'
 gem 'jekyll-swiss'
 gem 'jemoji'
 gem 'json', '2.0.3'

Gemfile.lock

@@ -6,47 +6,47 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.5.0)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     coderay (1.1.2)
     colorator (1.1.0)
     diff-lcs (1.3)
-    ffi (1.9.18)
+    ffi (1.11.3)
     forwardable-extended (2.6.0)
     gemoji (3.0.0)
     html-pipeline (2.5.0)
       activesupport (>= 2)
       nokogiri (>= 1.4)
     i18n (0.8.4)
-    jekyll (3.3.1)
+    jekyll (3.6.3)
       addressable (~> 2.4)
       colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
-      kramdown (~> 1.3)
-      liquid (~> 3.0)
+      kramdown (~> 1.14)
+      liquid (~> 4.0)
       mercenary (~> 0.3.3)
       pathutil (~> 0.9)
-      rouge (~> 1.7)
+      rouge (>= 1.7, < 3)
       safe_yaml (~> 1.0)
     jekyll-feed (0.9.1)
       jekyll (~> 3.3)
-    jekyll-sass-converter (1.5.0)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
     jekyll-swiss (0.4.0)
-    jekyll-watch (1.5.0)
-      listen (~> 3.0, < 3.1)
+    jekyll-watch (1.5.1)
+      listen (~> 3.0)
     jemoji (0.8.0)
       activesupport (~> 4.0)
       gemoji (~> 3.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
     json (2.0.3)
-    kramdown (1.13.2)
-    liquid (3.0.6)
-    listen (3.0.8)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
+    kramdown (1.17.0)
+    liquid (4.0.3)
+    listen (3.2.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     method_source (0.9.0)
     mini_portile2 (2.3.0)
@@ -55,17 +55,17 @@ GEM
     minitest (5.10.2)
     nokogiri (1.8.2)
       mini_portile2 (~> 2.3.0)
-    pathutil (0.14.0)
+    pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (2.0.5)
-    rb-fsevent (0.9.8)
-    rb-inotify (0.9.8)
-      ffi (>= 0.5.0)
+    public_suffix (4.0.2)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
     rb-readline (0.5.4)
-    rouge (1.11.1)
+    rouge (2.2.1)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)
       rspec-expectations (~> 3.7.0)
@@ -79,8 +79,12 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.7.0)
     rspec-support (3.7.1)
-    safe_yaml (1.0.4)
-    sass (3.4.23)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
     thor (0.19.4)
     thread_safe (0.3.6)
     timecop (0.9.1)
@@ -92,7 +96,7 @@ PLATFORMS
 
 DEPENDENCIES
   activesupport (= 4.2.8)
-  jekyll (= 3.3.1)
+  jekyll (= 3.6.3)
   jekyll-feed (~> 0.6)
   jekyll-swiss
   jemoji