Bump turbolinks from 5.2.0 to 5.2.1

Bumps [turbolinks](https://github.com/turbolinks/turbolinks-rails) from 5.2.0 to 5.2.1.
- [Release notes](https://github.com/turbolinks/turbolinks-rails/releases)
- [Commits](turbolinks/turbolinks-rails@v5.2.0...v5.2.1)

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

Gemfile.lock

@@ -164,7 +164,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.9)
-    turbolinks (5.2.0)
+    turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
     tzinfo (1.2.5)