Add pixi support #29

Job	Run time
ubuntu-latest - Env all Release	13m 6s
ubuntu-latest - Env all Release -mavx2	13m 17s
ubuntu-latest - Env all Debug	20m 8s
ubuntu-latest - Env all Debug -mavx2	2m 44s
ubuntu-latest - Env all-py39 Release	34s
ubuntu-latest - Env all-py39 Release -mavx2	38s
ubuntu-latest - Env all-py39 Debug	3m 1s
ubuntu-latest - Env all-py39 Debug -mavx2	2m 45s
macos-latest - Env all Release	7m 8s
macos-latest - Env all Debug	8m 51s
macos-latest - Env all-py39 Release	50s
macos-latest - Env all-py39 Debug	3m 53s
macos-13 - Env all Release	18m 43s
macos-13 - Env all Debug	26m 8s
macos-13 - Env all-py39 Release	1m 23s
macos-13 - Env all-py39 Debug	9m 10s
windows-latest - Env all Release	1m 38s
windows-latest - Env all-clang-cl Release	2m 5s
check-macos-linux-windows-pixi	4s
	2h 16m 6s

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