Bump nokogiri from 1.10.1 to 1.10.4 in /examples/rails_app

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.10.1 to 1.10.4.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/master/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.10.1...v1.10.4)

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

Author: dependabot[bot]

examples/rails_app/Gemfile

@@ -36,7 +36,7 @@ gem 'jbuilder', '~> 2.5'
 # Reduces boot times through caching; required in config/boot.rb
 # gem 'bootsnap', '>= 1.1.0', require: false
 
-gem 'nokogiri', '~> 1.10', '>= 1.10.1'
+gem 'nokogiri', '~> 1.10'
 gem 'therubyracer'
 gem 'tzinfo-data'
 

examples/rails_app/Gemfile.lock

@@ -83,7 +83,7 @@ GEM
     jbuilder (2.8.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
-    libv8 (3.16.14.19-x86_64-linux)
+    libv8 (3.16.14.19)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -102,7 +102,7 @@ GEM
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.10.1)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     public_suffix (3.0.3)
     puma (3.12.1)
@@ -204,7 +204,7 @@ DEPENDENCIES
   coffee-rails (~> 4.2)
   jbuilder (~> 2.5)
   listen (>= 3.0.5, < 3.2)
-  nokogiri (~> 1.10, >= 1.10.1)
+  nokogiri (~> 1.10)
   puma (~> 3.11)
   rails (~> 5.2.0)
   sass-rails (~> 5.0)