Bump sanitize from 5.0.0 to 5.1.0

Bumps [sanitize](https://github.com/rgrove/sanitize) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/rgrove/sanitize/releases)
- [Changelog](https://github.com/rgrove/sanitize/blob/master/HISTORY.md)
- [Commits](https://github.com/rgrove/sanitize/compare/v5.0.0...v5.1.0)

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

Gemfile

@@ -26,7 +26,7 @@ gem "sqlite3", group: :sqlite
 gem "mysql2", "~> 0.5.2", group: :mysql
 
 gem "RedCloth"
-gem "sanitize", "~> 5.0"
+gem "sanitize", "~> 5.1"
 gem "will_paginate"
 gem "acts_as_list"
 gem "aasm", '~> 3.4.0'

Gemfile.lock

@@ -139,7 +139,7 @@ GEM
     nio4r (2.5.2)
     nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
-    nokogumbo (2.0.1)
+    nokogumbo (2.0.2)
       nokogiri (~> 1.8, >= 1.8.4)
     paperclip (6.1.0)
       activemodel (>= 4.2.0)
@@ -208,7 +208,7 @@ GEM
     ruby_dep (1.5.0)
     rubyzip (1.3.0)
     safe_yaml (1.0.5)
-    sanitize (5.0.0)
+    sanitize (5.1.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)
       nokogumbo (~> 2.0)
@@ -302,7 +302,7 @@ DEPENDENCIES
   rails_autolink
   rspec-expectations
   rubocop (~> 0.78)
-  sanitize (~> 5.0)
+  sanitize (~> 5.1)
   sass-rails (~> 5.0)
   selenium-webdriver (~> 3.142)
   simplecov