Add script to generate the stub file #230

Job	Run time
ubuntu-latest, 3.10, ci/environment.yml	3m 45s
ubuntu-latest, 3.11, ci/environment.yml	3m 48s
ubuntu-latest, 3.12, ci/environment.yml	3m 48s
macos-latest, 3.10, ci/environment.yml	4m 6s
macos-latest, 3.11, ci/environment.yml	4m 8s
macos-latest, 3.12, ci/environment.yml	4m 14s
windows-latest, 3.10, ci/environment.yml	5m 42s
windows-latest, 3.11, ci/environment.yml	5m 27s
windows-latest, 3.12, ci/environment.yml	5m 34s
ubuntu-latest, 3.12, ci/environment-dev.yml	4m 17s
macos-latest, 3.12, ci/environment-dev.yml	4m 46s
windows-latest, 3.12, ci/environment-dev.yml	5m 38s
	55m 13s

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