build(deps-dev): update rubocop requirement from = 1.67.0 to = 1.68.0

Updates the requirements on [rubocop](https://github.com/rubocop/rubocop) to permit the latest version.
- [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]>

Author: dependabot[bot]

Gemfile.lock

@@ -47,7 +47,7 @@ GEM
     erubi (1.13.0)
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
-    json (2.7.2)
+    json (2.7.5)
     language_server-protocol (3.17.0.3)
     loofah (2.22.0)
       crass (~> 1.0.2)
@@ -61,7 +61,7 @@ GEM
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     parallel (1.26.3)
-    parser (3.3.5.0)
+    parser (3.3.5.1)
       ast (~> 2.4.1)
       racc
     racc (1.8.1)
@@ -76,7 +76,7 @@ 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)
@@ -86,7 +86,7 @@ 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 (1.33.1)
       parser (>= 3.3.1.0)
     rubocop-github (0.20.0)
       rubocop (>= 1.37)
@@ -115,7 +115,7 @@ DEPENDENCIES
   minitest (~> 5.25.1)
   mocha (~> 2.5.0)
   rake (~> 13.2.1)
-  rubocop (= 1.67.0)
+  rubocop (= 1.68.0)
   rubocop-github (~> 0.20.0)
 
 BUNDLED WITH

erblint-github.gemspec

@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "mocha", "~> 2.5.0"
   s.add_development_dependency "rake", "~> 13.2.1"
 
-  s.add_development_dependency "rubocop", "= 1.67.0"
+  s.add_development_dependency "rubocop", "= 1.68.0"
   s.add_development_dependency "rubocop-github", "~> 0.20.0"
   s.metadata["rubygems_mfa_required"] = "true"