Bump shoulda-matchers from 4.4.1 to 4.5.0 (#1866)

Bumps [shoulda-matchers](https://github.com/thoughtbot/shoulda-matchers) from 4.4.1 to 4.5.0.
- [Release notes](https://github.com/thoughtbot/shoulda-matchers/releases)
- [Changelog](https://github.com/thoughtbot/shoulda-matchers/blob/master/CHANGELOG.md)
- [Commits](thoughtbot/shoulda-matchers@v4.4.1...v4.5.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Gemfile.lock

@@ -132,7 +132,7 @@ GEM
       activesupport (>= 4.2.0)
     hashdiff (1.0.1)
     highline (2.0.3)
-    i18n (1.8.5)
+    i18n (1.8.7)
       concurrent-ruby (~> 1.0)
     i18n-tasks (0.9.33)
       activesupport (>= 4.0.2)
@@ -177,7 +177,7 @@ GEM
     mimemagic (0.3.5)
     mini_mime (1.0.2)
     mini_portile2 (2.5.0)
-    minitest (5.14.2)
+    minitest (5.14.3)
     momentjs-rails (2.20.1)
       railties (>= 3.1)
     multipart-post (2.1.1)
@@ -268,7 +268,7 @@ GEM
       rubyzip (>= 1.2.2)
     sentry-raven (3.1.1)
       faraday (>= 1.0)
-    shoulda-matchers (4.4.1)
+    shoulda-matchers (4.5.0)
       activesupport (>= 4.2.0)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)