Fix specs for Kernel#raise and supress Rubocop warnings

The tests were broken in a recent commit that fixes Rubocop warnings. So just suppress them.

Author: andrykonchin

core/kernel/raise_spec.rb

@@ -74,7 +74,7 @@ class << public_raiser
   end
 
   it "re-raises a previously rescued exception with overwriting the cause when it's explicitly specified with :cause option" do
-    check = -> raiser, re_raiser_with_cause do
+    check = -> ((raiser, re_raiser_with_cause)) do # rubocop:disable Style/StabbyLambdaParentheses
       e4 = RuntimeError.new("Error 4")
       begin
         begin
@@ -98,7 +98,7 @@ class << public_raiser
   end
 
   it "re-raises a previously rescued exception without overwriting the cause when it's explicitly specified with a :cause option that has nil value" do
-    check = -> raiser, re_raiser_with_cause do
+    check = -> ((raiser, re_raiser_with_cause)) do # rubocop:disable Style/StabbyLambdaParentheses
       begin
         begin
           begin