Bump ancestry from 3.0.1 to 3.0.2

Bumps [ancestry](https://github.com/stefankroes/ancestry) from 3.0.1 to 3.0.2.
- [Release notes](https://github.com/stefankroes/ancestry/releases)
- [Changelog](https://github.com/stefankroes/ancestry/blob/master/CHANGELOG.md)
- [Commits](https://github.com/stefankroes/ancestry/compare/v3.0.1...v3.0.2)

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

Gemfile

@@ -5,7 +5,7 @@ gem 'rails', '4.2.10'
 gem 'acts-as-taggable-on', '~> 5.0.0'
 gem 'acts_as_votable', '~> 0.11.1'
 gem 'ahoy_matey', '~> 1.6.0'
-gem 'ancestry', '~> 3.0.1'
+gem 'ancestry', '~> 3.0.2'
 gem 'autoprefixer-rails', '~> 9.1.4'
 gem 'browser', '~> 2.5.2'
 gem 'cancancan', '~> 2.1.2'

Gemfile.lock

@@ -57,7 +57,7 @@ GEM
     akami (1.3.1)
       gyoku (>= 0.4.0)
       nokogiri
-    ancestry (3.0.1)
+    ancestry (3.0.2)
       activerecord (>= 3.2.0)
     arel (6.0.4)
     ast (2.4.0)
@@ -501,7 +501,7 @@ DEPENDENCIES
   acts-as-taggable-on (~> 5.0.0)
   acts_as_votable (~> 0.11.1)
   ahoy_matey (~> 1.6.0)
-  ancestry (~> 3.0.1)
+  ancestry (~> 3.0.2)
   autoprefixer-rails (~> 9.1.4)
   browser (~> 2.5.2)
   bullet (~> 5.7.0)