Add Masato Nakamura to contributing #101

Job	Run time	Billable time
Ruby 2.4 - macos-latest	1m 1s	0s
Ruby 2.5 - macos-latest	55s	0s
Ruby 2.6 - macos-latest	1m 5s	0s
Ruby 2.7 - macos-latest	1m 3s	0s
Ruby 3.0 - macos-latest	37s	0s
Ruby 3.1 - macos-latest	26s	0s
Ruby 3.2 - macos-latest	28s	0s
Ruby 3.3 - macos-latest	36s	0s
Ruby head - macos-latest	29s	0s
Ruby jruby - macos-latest	3m 59s	0s
Ruby jruby-head - macos-latest	3m 10s	0s
Ruby truffleruby - macos-latest	1m 30s	0s
Ruby 2.4 - ubuntu-20.04	21s	0s
Ruby 2.5 - ubuntu-20.04	23s	0s
Ruby 2.6 - ubuntu-20.04	27s	0s
Ruby 2.7 - ubuntu-20.04	25s	0s
Ruby 3.0 - ubuntu-20.04	13s	0s
Ruby 3.1 - ubuntu-20.04	13s	0s
Ruby 3.2 - ubuntu-20.04	11s	0s
Ruby 3.3 - ubuntu-20.04	19s	0s
Ruby head - ubuntu-20.04	15s	0s
Ruby jruby - ubuntu-20.04	1m 44s	0s
Ruby jruby-head - ubuntu-20.04	1m 48s	0s
Ruby truffleruby - ubuntu-20.04	48s	0s
Ruby mingw - windows-latest	1m 33s	0s
Ruby mswin - windows-latest	1m 26s	0s
Ruby jruby - windows-latest	3m 40s	0s
Ruby head - ubuntu-22.04	10s	0s
Ruby 3.1 - ubuntu-22.04	15s	0s
Ruby 3.2 - ubuntu-22.04	13s	0s
Ruby 3.3 - ubuntu-22.04	24s	0s
	30m 7s	0s

Provide feedback