Update bm_hash_aref_flo benchmark
Update bm_hash_aref_flo benchmark

Fixed #12

segiddins/ruby-bench-suite,ruby-bench/ruby-bench-suite,tiegz/ruby-bench-suite,ruby-bench/ruby-bench-suite,segiddins/ruby-bench-suite,tgxworld/ruby-bench-suite,tiegz/ruby-bench-suite,ruby-bench/ruby-bench-suite,tgxworld/ruby-bench-suite