.rubocop.yml in govuk_tech_docs-3.5.0 vs .rubocop.yml in govuk_tech_docs-4.0.0

@@ -1,10 +1,10 @@
 inherit_gem:
   rubocop-govuk:
     - config/default.yml
 
 AllCops:
-  TargetRubyVersion: 2.7
+  TargetRubyVersion: 3.1
 
 Layout/HeredocIndentation:
   Enabled: false
 
 Naming/HeredocDelimiterNaming: