chore: output declaration files for neuroglancer packages (#576) #958

Job	Run time
wasm (ubuntu-latest)	1m 2s
ngauth (ubuntu-latest)	14s
python-tests (3.9, ubuntu-latest)	17m 7s
python-tests (3.9, windows-latest)	4m 45s
python-tests (3.9, macos-latest)	2m 35s
client (ubuntu-latest)	2m 2s
python-tests (3.12, ubuntu-latest)	17m 26s
client (windows-latest)	1m 47s
python-tests (3.12, windows-latest)	4m 51s
client (macos-latest)	1m 45s
python-tests (3.12, macos-latest)	2m 15s
python-build-package (ubuntu-latest, *, linux)	2m 40s
python-build-package (windows-latest, *, windows)	6m 37s
python-build-package (macos-14, *_x86_64, macos_x86_64)	3m 1s
python-build-package (macos-14, *_arm64, macos_arm64)	1m 57s
publish-package	0s
	1h 10m 4s

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