Bump rails-controller-testing from 1.0.2 to 1.0.3 (#9417)

Bumps [rails-controller-testing](https://github.com/rails/rails-controller-testing) from 1.0.2 to 1.0.3.
- [Release notes](https://github.com/rails/rails-controller-testing/releases)
- [Commits](https://github.com/rails/rails-controller-testing/compare/v1.0.2...v1.0.3)

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

Gemfile.lock

@@ -446,10 +446,10 @@ GEM
       bundler (>= 1.3.0)
       railties (= 5.2.1.1)
       sprockets-rails (>= 2.0.0)
-    rails-controller-testing (1.0.2)
+    rails-controller-testing (1.0.3)
-      actionpack (~> 5.x, >= 5.0.1)
+      actionpack (>= 5.0.1.x)
-      actionview (~> 5.x, >= 5.0.1)
+      actionview (>= 5.0.1.x)
-      activesupport (~> 5.x)
+      activesupport (>= 5.0.1.x)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)