Bump activesupport from 5.1.4 to 5.2.4.3

Bumps [activesupport](https://github.com/rails/rails) from 5.1.4 to 5.2.4.3.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v6.0.3.1/activesupport/CHANGELOG.md)
- [Commits](rails/rails@v5.1.4...v5.2.4.3)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -1,19 +1,19 @@
 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 (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     coderay (1.1.2)
     colorator (1.1.0)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.10)
     ffi (1.12.2)
     forwardable-extended (2.6.0)
-    i18n (0.9.1)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     jekyll (3.6.3)
       addressable (~> 2.4)
@@ -36,7 +36,7 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    minitest (5.10.3)
+    minitest (5.16.2)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.5)