MSC4108 implementation #961

Job	Run time
changes	2s
check-lockfile	8s
lint-crlf	4s
lint-newsfile	40s
check-sampleconfig	38s
lint	52s
lint-clippy	18s
check-schema-delta	42s
lint-clippy-nightly	31s
Typechecking	1m 28s
lint-pydantic	1m 1s
lint-rustfmt	26s
linting-done	1s
calculate-test-jobs	9s
trial-olddeps	7m 6s
portdb (3.8, 11)	3m 12s
complement (monolith, SQLite)	12m 9s
portdb (3.11, 15)	2m 53s
complement (monolith, Postgres)	13m 37s
cargo-bench	2m 28s
complement (workers, Postgres)	20m 15s
cargo-test	2m 16s
trial-pypy	0s
trial (3.8, sqlite, all)	4m 44s
sytest (focal)	9m 10s
trial (3.8, postgres, 11, all)	10m 8s
sytest (focal, postgres)	11m 10s
trial (3.8, sqlite)	4m 14s
sytest (focal, multi-postgres, workers)	14m 15s
sytest (focal, multi-postgres, workers, asyncio)	20m 17s
export-data	2m 34s
tests-done	2s
	2h 27m 30s

Provide feedback