Bump rubocop from 1.67.0 to 1.68.0

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.67.0 to 1.68.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.67.0...v1.68.0)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile

@@ -9,7 +9,7 @@ gem 'benchmark'
 gem 'minitest', '5.25.1'
 gem 'pry', '0.14.2'
 gem 'rake', '13.2.1'
-gem 'rubocop', '1.67.0'
+gem 'rubocop', '1.68.0'
 gem 'rubocop-minitest', '0.36.0'
 gem 'rubocop-rake', '0.6.0'
 gem 'simplecov', '0.22.0'

Gemfile.lock

@@ -14,12 +14,12 @@ GEM
     docile (1.4.0)
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
-    json (2.7.2)
+    json (2.7.5)
     language_server-protocol (3.17.0.3)
     method_source (1.0.0)
     minitest (5.25.1)
     parallel (1.26.3)
-    parser (3.3.5.0)
+    parser (3.3.5.1)
       ast (~> 2.4.1)
       racc
     power_assert (2.0.3)
@@ -30,7 +30,7 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
-    rubocop (1.67.0)
+    rubocop (1.68.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -40,7 +40,7 @@ GEM
       rubocop-ast (>= 1.32.2, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.32.3)
+    rubocop-ast (1.33.0)
       parser (>= 3.3.1.0)
     rubocop-minitest (0.36.0)
       rubocop (>= 1.61, < 2.0)
@@ -70,7 +70,7 @@ DEPENDENCIES
   minitest (= 5.25.1)
   pry (= 0.14.2)
   rake (= 13.2.1)
-  rubocop (= 1.67.0)
+  rubocop (= 1.68.0)
   rubocop-minitest (= 0.36.0)
   rubocop-rake (= 0.6.0)
   simplecov (= 0.22.0)