Add support for specialization constants #6255

Job	Run time
build_windows (3.13)	9m 30s
build_windows (3.14)	8m 5s
build_windows (3.11)	9m 6s
build_windows (3.10)	9m 21s
build_windows (3.12)	8m 59s
build_linux (3.10)	5m 36s
build_linux (3.11)	7m 12s
build_linux (3.14)	6m 6s
build_linux (3.12)	5m 21s
build_linux (3.13)	6m 22s
test_examples_linux (3.11, false, ubuntu-latest)	5m 47s
test_linux (3.11, false, ubuntu-latest)	1m 42s
test_linux (3.13, false, ubuntu-latest)	1m 50s
test_linux (3.12, false, ubuntu-latest)	1m 47s
test_linux (3.14, false, ubuntu-latest)	1m 50s
test_linux (3.10, false, ubuntu-latest)	1m 43s
upload_linux	0s
test_windows (3.12, false, windows-latest)	2m 35s
test_windows (3.10, false, windows-latest)	2m 38s
test_windows (3.13, false, windows-latest)	2m 39s
test_windows (3.11, false, windows-latest)	2m 39s
test_windows (3.14, false, windows-latest)	2m 35s
upload_windows	0s
Clean up anaconda packages	0s
	1h 43m 23s

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