Bump rubocop from 0.64.0 to 0.65.0

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.64.0 to 0.65.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v0.64.0...v0.65.0)

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

Gemfile.lock

@@ -111,6 +111,7 @@ GEM
       eventmachine (= 1.0.9)
       ffi
     powerpack (0.1.2)
+    psych (3.1.0)
     public_suffix (3.0.3)
     puma (3.12.0)
     quiet_assets (1.1.0)
@@ -166,11 +167,12 @@ GEM
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
-    rubocop (0.64.0)
+    rubocop (0.65.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.5, != 2.5.1.1)
       powerpack (~> 0.1)
+      psych (>= 3.1.0)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.4.0)