Add pixi support #25

Job	Run time
ubuntu-latest - Env all Release	12m 20s
ubuntu-latest - Env all Release -mavx2	14m 6s
ubuntu-latest - Env all Debug	18m 25s
ubuntu-latest - Env all Debug -mavx2	19m 16s
ubuntu-latest - Env all-py39 Release	44s
ubuntu-latest - Env all-py39 Release -mavx2	33s
ubuntu-latest - Env all-py39 Debug	2m 50s
ubuntu-latest - Env all-py39 Debug -mavx2	2m 51s
macos-latest - Env all Release	55s
macos-latest - Env all Debug	15m 40s
macos-latest - Env all-py39 Release	1m 0s
macos-latest - Env all-py39 Debug	3m 35s
macos-13 - Env all Release	14m 30s
macos-13 - Env all Debug	8m 24s
macos-13 - Env all-py39 Release	1m 41s
macos-13 - Env all-py39 Debug	10m 31s
windows-latest - Env all Release	20m 56s
windows-latest - Env all-clang-cl Release	2m 18s
check-macos-linux-windows-pixi	2s
	2h 30m 37s

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