.rubocop.yml in gitlab-license-2.3.0 vs .rubocop.yml in gitlab-license-2.4.0

- old
+ new

@@ -1,7 +1,9 @@
 inherit_from: .rubocop_todo.yml
 
 require: rubocop-rspec
+AllCops:
+  TargetRubyVersion: 2.7
 
 Metrics/BlockLength:
   ExcludedMethods: ['describe', 'context']
 
 Style/Alias: