Bump nokogiri from 1.10.3 to 1.10.4 (#4439)

dependabot[bot] · rmzelle · commit 208b693be6ef · 2019-12-07T17:08:33.000-05:00
diff --git a/Gemfile.lock b/Gemfile.lock
@@ -31,7 +31,7 @@ GEM
       ruby-progressbar (~> 1.4)
     mini_portile2 (2.4.0)
     namae (1.0.1)
-    nokogiri (1.10.3)
+    nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     ostruct (0.1.0)
     rake (12.3.3)
