Merge branch '31358_decrease_perceived_complexity_threshold_step1' into 'master'

Decrease Metrics/PerceivedComplexity threshold to 17

See merge request !13947

.rubocop.yml

@@ -665,7 +665,7 @@ Metrics/ParameterLists:
 # A complexity metric geared towards measuring complexity for a human reader.
 Metrics/PerceivedComplexity:
   Enabled: true
-  Max: 18
+  Max: 17
 
 # Lint ########################################################################