feat: Add pixi to the template #1296

Job	Run time
smoke-test (auto-format-tools.sh)	1m 35s
smoke-test (automation.sh)	2m 6s
check-branch	3s
linter	1m 22s
smoke-test (build-systems.sh)	7m 16s
smoke-test (cli.sh)	2m 7s
smoke-test (containers.sh)	2m 32s
smoke-test (docs-jupyter-book.sh)	2m 41s
smoke-test (docs-mkdocs.sh)	2m 58s
smoke-test (docs-quarto.sh)	3m 40s
smoke-test (docs-sphinx.sh)	3m 40s
smoke-test (files.sh)	5m 55s
smoke-test (linters.sh)	7m 18s
smoke-test (tests.sh)	2m 2s
smoke-test (virtual-envs.sh)	1m 36s
tests (macos)	1m 49s
tests (windows)	6m 52s
tests (ubuntu)	1m 20s
	56m 52s

Provide feedback