Bump nokogiri from 1.6.6.2 to 1.13.6

Gemfile.lock

@@ -43,27 +43,33 @@ GEM
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     arel (6.0.0)
-    builder (3.2.2)
+    builder (3.2.4)
+    concurrent-ruby (1.1.10)
+    crass (1.0.6)
     erubis (2.7.0)
     execjs (2.5.2)
     globalid (0.3.5)
       activesupport (>= 4.1.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jquery-rails (4.0.3)
       rails-dom-testing (~> 1.0)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (1.8.6)
-    loofah (2.0.1)
+    loofah (2.18.0)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.5)
-    mini_portile (0.6.2)
-    minitest (5.6.1)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
-    rack (1.6.0)
+    mini_portile2 (2.8.0)
+    minitest (5.15.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    racc (1.6.0)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.1)
@@ -77,14 +83,14 @@ GEM
       bundler (>= 1.3.0, < 2.0)
       railties (= 4.2.1)
       sprockets-rails
-    rails-deprecated_sanitizer (1.0.3)
+    rails-deprecated_sanitizer (1.0.4)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.6)
-      activesupport (>= 4.2.0.beta, < 5.0)
-      nokogiri (~> 1.6.0)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.2)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.2)
+      loofah (~> 2.3)
     railties (4.2.1)
       actionpack (= 4.2.1)
       activesupport (= 4.2.1)
@@ -99,8 +105,8 @@ GEM
       sprockets (>= 2.8, < 4.0)
     sqlite3 (1.3.10)
     thor (0.19.1)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
+    thread_safe (0.3.6)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
 
 PLATFORMS