Bump activesupport from 5.0.2 to 5.2.4.3 (#7)

Author: dependabot[bot]

Gemfile.lock

@@ -1,9 +1,9 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.0.2)
+    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 (2.5.1)
@@ -32,7 +32,7 @@ GEM
       timers (>= 4.1.1)
     chronic (0.10.2)
     coderay (1.1.1)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.6)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     diff-lcs (1.3)
@@ -48,10 +48,11 @@ GEM
     hashie (3.5.5)
     hitimes (1.2.4)
     holidays (5.4.0)
-    i18n (0.8.1)
+    i18n (1.8.2)
+      concurrent-ruby (~> 1.0)
     json (2.0.4)
     method_source (0.8.2)
-    minitest (5.10.1)
+    minitest (5.14.1)
     multipart-post (2.0.0)
     nio4r (2.0.0)
     pry (0.10.4)
@@ -104,7 +105,7 @@ GEM
     tilt (2.0.7)
     timers (4.1.2)
       hitimes
-    tzinfo (1.2.3)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
     vcr (3.0.3)
     webmock (3.0.1)