Produce a distroless-based Docker image #4291

Job	Run time
check-lockfile	7s
lint-crlf	7s
changes	2s
lint-newsfile	36s
check-sampleconfig	49s
lint	20s
lint-clippy	0s
check-schema-delta	42s
lint-clippy-nightly	0s
Typechecking	1m 32s
lint-pydantic	42s
lint-readme	0s
lint-rustfmt	0s
linting-done	2s
calculate-test-jobs	8s
portdb (3.9, 11)	6m 20s
portdb (3.13, 17)	6m 37s
trial-olddeps	7m 3s
complement (monolith, SQLite)	2m 25s
trial-pypy	0s
complement (monolith, Postgres)	2m 29s
complement (workers, Postgres)	2m 25s
cargo-bench	0s
cargo-test	0s
sytest (bullseye)	8m 18s
trial (3.9, sqlite, all)	9m 56s
sytest (bullseye, postgres)	10m 45s
trial (3.9, postgres, 11, all)	16m 6s
sytest (bullseye, multi-postgres, workers)	13m 18s
trial (3.9, sqlite)	11m 34s
sytest (bullseye, multi-postgres, workers, asyncio)	28m 41s
export-data	5m 9s
tests-done	4s
	2h 16m 17s

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