ci: use more permissive rubocop / codeclimate settings.

.codeclimate.yml

@@ -1,17 +1,25 @@
 version: 2
 checks:
   argument-count:
+    enabled: false
+  complex-logic:
     config:
-      threshold: 4
+      threshold: 8
   file-lines:
     config:
-      threshold: 500
+      threshold: 1000
+  method-complexity:
+    config:
+      threshold: 15
   method-count:
-    config:
-      threshold: 40
+    enabled: false
   method-lines:
+    enabled: false
+  nested-control-flow:
     config:
-      threshold: 100
+      threshold: 4
+  return-statements:
+    enabled: false
 plugins:
   eslint:
     enabled: true