Merge branch '257438-ruby-2-7-redis-hll-warnings' into 'master'

Fix Ruby 2.7 deprecation warnings for redis hll

See merge request gitlab-org/gitlab!43544

lib/gitlab/redis/hll.rb

@@ -7,11 +7,11 @@ module Gitlab
       KeyFormatError = Class.new(StandardError)
 
       def self.count(params)
-        self.new.count(params)
+        self.new.count(**params)
       end
 
       def self.add(params)
-        self.new.add(params)
+        self.new.add(**params)
       end
 
       def count(keys:)