Bump jekyll from 4.1.1 to 4.2.0 (#15916)

Bumps [jekyll](https://github.com/jekyll/jekyll) from 4.1.1 to 4.2.0.
- [Release notes](https://github.com/jekyll/jekyll/releases)
- [Changelog](https://github.com/jekyll/jekyll/blob/master/History.markdown)
- [Commits](https://github.com/jekyll/jekyll/compare/v4.1.1...v4.2.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -4,7 +4,7 @@ ruby '> 2.5.0'
 
 group :development do
   gem 'rake', '13.0.1'
-  gem 'jekyll', '4.1.1'
+  gem 'jekyll', '4.2.0'
   gem 'compass', '1.0.3'
   gem 'sass-globbing', '1.1.5'
   gem 'stringex', '2.8.5'

Gemfile.lock

@@ -31,21 +31,21 @@ GEM
     http_parser.rb (0.6.0)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
-    jekyll (4.1.1)
+    jekyll (4.2.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
       i18n (~> 1.0)
       jekyll-sass-converter (~> 2.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 2.1)
+      kramdown (~> 2.3)
       kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
       mercenary (~> 0.4.0)
       pathutil (~> 0.9)
       rouge (~> 3.0)
       safe_yaml (~> 1.0)
-      terminal-table (~> 1.8)
+      terminal-table (~> 2.0)
     jekyll-commonmark (1.3.1)
       commonmarker (~> 0.14)
       jekyll (>= 3.7, < 5.0)
@@ -107,7 +107,7 @@ GEM
       rack-protection (= 2.1.0)
       tilt (~> 2.0)
     stringex (2.8.5)
-    terminal-table (1.8.0)
+    terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     tilt (2.0.10)
     tzinfo (2.0.3)
@@ -122,7 +122,7 @@ PLATFORMS
 
 DEPENDENCIES
   compass (= 1.0.3)
-  jekyll (= 4.1.1)
+  jekyll (= 4.2.0)
   jekyll-commonmark (= 1.3.1)
   jekyll-paginate (= 1.1.0)
   jekyll-sitemap (= 1.4.0)