Fix building debian packages on non-clean checkouts #2013

Job	Run time
changes	4s
lint-crlf	7s
check-lockfile	5s
lint-newsfile	33s
Typechecking	1m 27s
check-sampleconfig	42s
check-schema-delta	40s
lint	45s
lint-pydantic	39s
lint-clippy	0s
lint-readme	0s
lint-clippy-nightly	0s
lint-rustfmt	0s
linting-done	1s
calculate-test-jobs	6s
portdb (3.8, 11)	2m 50s
complement (monolith, SQLite)	12m 44s
portdb (3.11, 15)	2m 42s
complement (monolith, Postgres)	13m 35s
cargo-bench	0s
complement (workers, Postgres)	20m 52s
cargo-test	0s
trial-olddeps	0s
trial-pypy	0s
sytest (focal)	8m 27s
trial	0s
sytest (focal, postgres)	10m 3s
sytest (focal, multi-postgres, workers)	13m 29s
sytest (focal, multi-postgres, workers, asyncio)	19m 51s
export-data	2m 4s
tests-done	5s
	1h 51m 51s

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