Fix error identification middleware calling into the wrong super

I hbad thought that because the body of `call` and `call_super` are
identical, it would be OK to just alias them. However, that means they
both call into the `call` super, and never the `call_pipelined` super,
as it turns out, which is wrong.

Author: KJ Tsanaktsidis

lib/redis_client/cluster/error_identification.rb

@@ -29,7 +29,13 @@ def call(_command, config)
           identify_error(e, config)
           raise
         end
-        alias call_pipelined call
+
+        def call_pipelined
+          super
+        rescue RedisClient::Error => e
+          identify_error(e, config)
+          raise
+        end
 
         private