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:development
  update-type: version-update:semver-minor
...

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

Gemfile

@@ -15,7 +15,7 @@ group :development, :test do
 end
 
 group :development do
-  gem "rubocop", "~> 1.67", require: false
+  gem "rubocop", "~> 1.68", require: false
   gem "rubocop-rake", require: false
   gem "rubocop-rspec", require: false
 end

Gemfile.lock

@@ -18,10 +18,10 @@ GEM
     diff-lcs (1.5.1)
     docile (1.4.1)
     hashdiff (1.1.1)
-    json (2.7.4)
+    json (2.7.6)
     language_server-protocol (3.17.0.3)
     parallel (1.26.3)
-    parser (3.3.5.0)
+    parser (3.3.5.1)
       ast (~> 2.4.1)
       racc
     public_suffix (5.1.1)
@@ -43,7 +43,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
-    rubocop (1.67.0)
+    rubocop (1.68.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -53,7 +53,7 @@ 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 (1.34.0)
       parser (>= 3.3.1.0)
     rubocop-rake (0.6.0)
       rubocop (~> 1.0)
@@ -89,7 +89,7 @@ DEPENDENCIES
   rake (~> 13.0)
   rodiff!
   rspec (~> 3.12)
-  rubocop (~> 1.67)
+  rubocop (~> 1.68)
   rubocop-rake
   rubocop-rspec
   simplecov (~> 0.22.0)