Bump rubocop from 0.67.2 to 0.68.1

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.67.2 to 0.68.1.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v0.67.2...v0.68.1)

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -121,7 +121,7 @@ group :development, :test, :docs do
   gem 'immigrant', '~> 0.3'
   gem 'rspec-rails', '~> 3.8'
   gem 'rspec_junit_formatter', '~> 0.4'
-  gem 'rubocop', '~> 0.67', require: false
+  gem 'rubocop', '~> 0.68', require: false
 end
 
 group :development do

Gemfile.lock

@@ -554,11 +554,10 @@ GEM
       mimemagic (~> 0.3.0)
       terrapin (~> 0.6.0)
     parallel (1.17.0)
-    parser (2.6.2.1)
+    parser (2.6.3.0)
       ast (~> 2.4.0)
     personnummer (0.1.0)
     pg (1.1.4)
-    psych (3.1.0)
     public_suffix (3.0.3)
     puma (3.12.1)
     pundit (2.0.1)
@@ -668,11 +667,10 @@ GEM
     rspec-support (3.8.0)
     rspec_junit_formatter (0.4.1)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (0.67.2)
+    rubocop (0.68.1)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.5, != 2.5.1.1)
-      psych (>= 3.1.0)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 1.6)
@@ -845,7 +843,7 @@ DEPENDENCIES
   rspec-activemodel-mocks (~> 1.1)
   rspec-rails (~> 3.8)
   rspec_junit_formatter (~> 0.4)
-  rubocop (~> 0.67)
+  rubocop (~> 0.68)
   sidekiq (< 6)
   simplecov (~> 0.16)
   spring (~> 2.0)