Bump activesupport from 5.1.4 to 5.2.4.3

Gemfile.lock

@@ -1,9 +1,9 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.1.4)
+    activesupport (5.2.4.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     addressable (2.5.2)
@@ -19,7 +19,7 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     colored (1.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.6)
     cri (2.9.1)
       colored (~> 1.2)
     ddplugin (1.0.1)
@@ -43,7 +43,8 @@ GEM
       nanoc (>= 4.3.8, < 5.0)
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
-    i18n (0.8.6)
+    i18n (1.8.2)
+      concurrent-ruby (~> 1.0)
     kramdown (1.15.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -52,7 +53,7 @@ GEM
     lumberjack (1.0.12)
     method_source (0.8.2)
     mini_magick (4.8.0)
-    minitest (5.10.3)
+    minitest (5.14.1)
     nanoc (4.8.6)
       addressable (~> 2.5)
       cri (~> 2.8)
@@ -85,7 +86,7 @@ GEM
     terminal-notifier-guard (1.6.4)
     thor (0.20.0)
     thread_safe (0.3.6)
-    tzinfo (1.2.3)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
 
 PLATFORMS