Bump rotp from 6.1.0 to 6.2.0

Bumps [rotp](https://github.com/mdp/rotp) from 6.1.0 to 6.2.0.
- [Release notes](https://github.com/mdp/rotp/releases)
- [Changelog](https://github.com/mdp/rotp/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mdp/rotp/commits)

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

Gemfile.lock

@@ -389,7 +389,7 @@ GEM
       rack (>= 1.4)
     rexml (3.2.4)
     rinku (2.0.6)
-    rotp (6.1.0)
+    rotp (6.2.0)
     rubocop (0.92.0)
       parallel (~> 1.10)
       parser (>= 2.7.1.5)