Restructure Python examples #6264

Job	Run time
build_windows (3.10)	9m 24s
build_linux (3.11)	5m 22s
build_windows (3.14)	8m 53s
build_windows (3.11)	9m 36s
build_linux (3.12)	5m 5s
build_windows (3.13)	8m 38s
build_linux (3.14)	5m 34s
build_linux (3.13)	4m 57s
build_linux (3.10)	5m 25s
build_windows (3.12)	9m 11s
test_linux (3.10, false, ubuntu-latest)	2m 11s
test_linux (3.13, false, ubuntu-latest)	2m 30s
test_linux (3.14, false, ubuntu-latest)	2m 29s
test_examples_linux (3.14, false, ubuntu-latest)	3m 7s
test_linux (3.12, false, ubuntu-latest)	2m 10s
test_linux (3.11, false, ubuntu-latest)	3m 58s
upload_linux	-1s
test_windows (3.10, false, windows-latest)	4m 37s
test_windows (3.11, false, windows-latest)	3m 16s
test_windows (3.13, false, windows-latest)	3m 38s
test_windows (3.14, false, windows-latest)	3m 26s
test_windows (3.12, false, windows-latest)	3m 22s
upload_windows	0s
Clean up anaconda packages	0s
	1h 46m 48s

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