tests

Make CI run with weekly cron job. #1157

Job	Run time
linting	18s
windows-latest py3.9	54s
windows-latest py3.10	59s
windows-latest py3.11	58s
windows-latest py3.12	57s
ubuntu-latest py3.9	1m 2s
ubuntu-latest py3.10	1m 13s
ubuntu-latest py3.11	58s
ubuntu-latest py3.12	1m 0s
macos-14 py3.9	1s
macos-14 py3.10	1s
macos-14 py3.11	1s
macos-14 py3.12	1s
macos-13 py3.9	1s
macos-13 py3.10	1s
macos-13 py3.11	1s
macos-13 py3.12	1s
Build source distribution	0s
Publish build distributions	0s
	8m 27s

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