build(deps-dev): update rubocop requirement from = 1.81.1 to = 1.81.6

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

Updates `rubocop` from 1.81.1 to 1.81.6
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.81.1...v1.81.6)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-version: 1.81.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: all-dependencies
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -51,7 +51,7 @@ GEM
     erubi (1.13.1)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
-    json (2.15.0)
+    json (2.15.2)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
     logger (1.6.6)
@@ -67,10 +67,10 @@ GEM
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     parallel (1.27.0)
-    parser (3.3.9.0)
+    parser (3.3.10.0)
       ast (~> 2.4.1)
       racc
-    prism (1.5.1)
+    prism (1.6.0)
     racc (1.8.1)
     rack (3.1.18)
     rails-dom-testing (2.2.0)
@@ -83,7 +83,7 @@ GEM
     rainbow (3.1.1)
     rake (13.3.0)
     regexp_parser (2.11.3)
-    rubocop (1.81.1)
+    rubocop (1.81.6)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -130,7 +130,7 @@ DEPENDENCIES
   minitest (~> 5.26.0)
   mocha (~> 2.7.0)
   rake (~> 13.3.0)
-  rubocop (= 1.81.1)
+  rubocop (= 1.81.6)
   rubocop-github (~> 0.23.0)
 
 BUNDLED WITH

erblint-github.gemspec

@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency "mocha", "~> 2.7.0"
   s.add_development_dependency "rake", "~> 13.3.0"
 
-  s.add_development_dependency "rubocop", "= 1.81.1"
+  s.add_development_dependency "rubocop", "= 1.81.6"
   s.add_development_dependency "rubocop-github", "~> 0.23.0"
   s.metadata["rubygems_mfa_required"] = "true"