.rubocop.yml in cequens-0.0.8 vs .rubocop.yml in cequens-0.0.9

@@ -1,6 +1,6 @@
 AllCops:
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 2.7
 Metrics/LineLength:
   Max: 120
 Metrics/BlockLength:
   ExcludedMethods: ['describe', 'context']
 Style/Documentation:
\ No newline at end of file