Bump active_model_serializers from 0.10.7 to 0.10.8 (#201)

Bumps [active_model_serializers](https://github.com/rails-api/active_model_serializers) from 0.10.7 to 0.10.8.
- [Release notes](https://github.com/rails-api/active_model_serializers/releases)
- [Changelog](https://github.com/rails-api/active_model_serializers/blob/master/CHANGELOG-0-10.md)
- [Commits](rails-api/active_model_serializers@v0.10.7...v0.10.8)

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

Gemfile

@@ -6,7 +6,7 @@ end
 
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-gem 'active_model_serializers', '~> 0.10.0'
+gem 'active_model_serializers', '~> 0.10.8'
 gem 'attr_encrypted', '~> 3.1', github: 'attr-encrypted/attr_encrypted'
 gem 'aws-sdk', '~> 2.10'
 gem 'bootsnap', '>= 1.1.0', require: false

Gemfile.lock

@@ -31,7 +31,7 @@ GEM
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    active_model_serializers (0.10.7)
+    active_model_serializers (0.10.8)
       actionpack (>= 4.1, < 6)
       activemodel (>= 4.1, < 6)
       case_transform (>= 0.2)
@@ -314,7 +314,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  active_model_serializers (~> 0.10.0)
+  active_model_serializers (~> 0.10.8)
   attr_encrypted (~> 3.1)!
   aws-sdk (~> 2.10)
   bootsnap (>= 1.1.0)