Re-implement gpairs #391

Job	Run time
Build ['ubuntu-latest', python='3.9']	6m 17s
Build ['windows-latest', python='3.9']	11m 0s
Build ['ubuntu-latest', python='3.10']	6m 3s
Build ['windows-latest', python='3.10']	16m 54s
Build ['ubuntu-latest', python='3.11']	5m 55s
Build ['windows-latest', python='3.11']	17m 31s
Test ['ubuntu-20.04', python='3.9']	3m 48s
Test ['ubuntu-20.04', python='3.9']	3m 35s
Test ['ubuntu-latest', python='3.9']	3m 53s
Test ['ubuntu-latest', python='3.9']	3m 49s
Test ['windows-latest', python='3.9']	8m 23s
Test ['windows-latest', python='3.9']	7m 36s
Test ['ubuntu-20.04', python='3.10']	3m 50s
Test ['ubuntu-20.04', python='3.10']	3m 38s
Test ['ubuntu-latest', python='3.10']	4m 4s
Test ['ubuntu-latest', python='3.10']	3m 48s
Test ['windows-latest', python='3.10']	6m 42s
Test ['windows-latest', python='3.10']	6m 54s
Test ['ubuntu-20.04', python='3.11']	3m 46s
Test ['ubuntu-20.04', python='3.11']	3m 50s
Test ['ubuntu-latest', python='3.11']	3m 44s
Test ['ubuntu-latest', python='3.11']	3m 52s
Test ['windows-latest', python='3.11']	7m 9s
Test ['windows-latest', python='3.11']	7m 38s
Upload dppy/label/dev ['${{ matrix.os }}', python='${{ matrix.python }}']	0s
Clean up anaconda packages	0s
	2h 33m 39s

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