Bump aasm from 5.1.1 to 5.2.0

Bumps [aasm](https://github.com/aasm/aasm) from 5.1.1 to 5.2.0.
- [Release notes](https://github.com/aasm/aasm/releases)
- [Changelog](https://github.com/aasm/aasm/blob/master/CHANGELOG.md)
- [Commits](https://github.com/aasm/aasm/compare/v5.1.1...v5.2.0)

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

Gemfile

@@ -16,7 +16,7 @@ gem 'font-awesome-sass', '~> 5.15.1'
 
 gem 'uglifier', '>=1.3.0'
 
-gem 'aasm', '~> 5.1.1'
+gem 'aasm', '~> 5.2.0'
 gem 'acts_as_list'
 gem 'bcrypt', '~> 3.1.16'
 gem 'chartjs-ror', :git => 'git://github.com/ZeiP/chartjs-ror.git'

Gemfile.lock

@@ -9,7 +9,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     RedCloth (4.3.2)
-    aasm (5.1.1)
+    aasm (5.2.0)
       concurrent-ruby (~> 1.0)
     actioncable (6.0.3.4)
       actionpack (= 6.0.3.4)
@@ -325,7 +325,7 @@ PLATFORMS
 
 DEPENDENCIES
   RedCloth
-  aasm (~> 5.1.1)
+  aasm (~> 5.2.0)
   actionpack-xml_parser (~> 2.0)
   activemodel-serializers-xml (~> 1.0.1)
   acts_as_list