Restructure Python examples #6300

Job	Run time
build_linux (3.12)	5m 13s
build_windows (3.14)	8m 16s
build_windows (3.12)	8m 46s
build_linux (3.11)	5m 19s
build_linux (3.13)	5m 27s
build_linux (3.14)	5m 26s
build_windows (3.13)	8m 24s
build_windows (3.10)	8m 33s
build_windows (3.11)	9m 26s
build_linux (3.10)	5m 27s
test_linux (3.11, false, ubuntu-latest)	2m 24s
test_linux (3.10, false, ubuntu-latest)	2m 34s
test_linux (3.12, false, ubuntu-latest)	2m 38s
test_linux (3.13, false, ubuntu-latest)	2m 18s
test_examples_linux (3.14, false, ubuntu-latest)	5m 33s
test_linux (3.14, false, ubuntu-latest)	2m 14s
upload_linux	-1s
test_windows (3.13, false, windows-latest)	3m 13s
test_windows (3.10, false, windows-latest)	4m 29s
test_windows (3.12, false, windows-latest)	2m 56s
test_windows (3.11, false, windows-latest)	3m 18s
test_windows (3.14, false, windows-latest)	4m 9s
upload_windows	-1s
Clean up anaconda packages	-1s
	1h 46m 0s

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