Bump sanitize from 5.0.0 to 5.1.0 (#11786)

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.lock

@@ -382,7 +382,7 @@ GEM
     nio4r (2.4.0)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    nokogumbo (2.0.0)
+    nokogumbo (2.0.1)
       nokogiri (~> 1.8, >= 1.8.4)
     nsa (0.2.7)
       activesupport (>= 4.2, < 6)
@@ -565,7 +565,7 @@ GEM
     rufus-scheduler (3.5.2)
       fugit (~> 1.1, >= 1.1.5)
     safe_yaml (1.0.5)
-    sanitize (5.0.0)
+    sanitize (5.1.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)
       nokogumbo (~> 2.0)
@@ -769,7 +769,7 @@ DEPENDENCIES
   rspec-sidekiq (~> 3.0)
   rubocop (~> 0.74)
   rubocop-rails (~> 2.3)
-  sanitize (~> 5.0)
+  sanitize (~> 5.1)
   sidekiq (~> 5.2)
   sidekiq-bulk (~> 0.2.0)
   sidekiq-scheduler (~> 3.0)