Fix backup integration tests #1376

Job	Run time
Build docs with pdoc	42s
Check packaging (3.9)	32s
Check packaging (3.13)	1m 37s
linting / lint	12s
unit-tests / Type checking (3.9, true)	54s
unit-tests / Unit tests (3.9, true)	53s
unit-tests / Type checking (3.9, false)	41s
unit-tests / Unit tests (3.9, false)	44s
unit-tests / Type checking (3.13, true)	1m 37s
unit-tests / Unit tests (3.13, true)	1m 36s
unit-tests / Type checking (3.13, false)	1m 37s
unit-tests / Unit tests (3.13, false)	1m 35s
integration-tests	1s
dependency-tests	1s
	12m 42s

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