Add pixi support #20

Job	Run time
ubuntu-latest - Env all Release	7m 12s
ubuntu-latest - Env all Release -mavx2	7m 11s
ubuntu-latest - Env all Debug	7m 11s
ubuntu-latest - Env all Debug -mavx2	2m 38s
ubuntu-latest - Env all-py39 Release	36s
ubuntu-latest - Env all-py39 Release -mavx2	34s
ubuntu-latest - Env all-py39 Debug	2m 32s
ubuntu-latest - Env all-py39 Debug -mavx2	2m 56s
macos-latest - Env all Release	5m 29s
macos-latest - Env all Debug	3m 47s
macos-latest - Env all-py39 Release	57s
macos-latest - Env all-py39 Debug	4m 27s
macos-13 - Env all Release	1m 33s
macos-13 - Env all Debug	7m 16s
macos-13 - Env all-py39 Release	1m 38s
macos-13 - Env all-py39 Debug	7m 13s
windows-latest - Env all Release	5m 33s
windows-latest - Env all-clang-cl Release	2m 27s
check-macos-linux-windows-pixi	2s
	1h 11m 12s

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