ci: add weekly lockfile update workflow #4085

Job	Run time
checks / readme-snippets	14s
checks / pre-commit	35s
checks / test (3.11, lowest-direct, windows-latest)	2m 34s
checks / test (3.13, lowest-direct, ubuntu-latest)	44s
checks / test (3.12, highest, windows-latest)	3m 22s
checks / test (3.13, highest, ubuntu-latest)	47s
checks / test (3.12, lowest-direct, windows-latest)	3m 24s
checks / test (3.11, lowest-direct, ubuntu-latest)	45s
checks / test (3.11, highest, ubuntu-latest)	47s
checks / test (3.14, highest, windows-latest)	2m 24s
checks / test (3.13, highest, windows-latest)	2m 26s
checks / test (3.10, highest, ubuntu-latest)	51s
checks / test (3.13, lowest-direct, windows-latest)	2m 28s
checks / test (3.11, highest, windows-latest)	3m 0s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 16s
checks / test (3.12, highest, ubuntu-latest)	55s
checks / test (3.10, highest, windows-latest)	3m 13s
checks / test (3.10, lowest-direct, ubuntu-latest)	45s
checks / test (3.10, lowest-direct, windows-latest)	2m 29s
checks / test (3.14, lowest-direct, windows-latest)	2m 21s
checks / test (3.12, lowest-direct, ubuntu-latest)	49s
checks / test (3.14, highest, ubuntu-latest)	1m 18s
	37m 27s

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