Tests

Drop unstable MSC4151 implementation #4382

Job	Run time
changes	2s
check-lockfile	4s
lint-newsfile	35s
lint-crlf	3s
check-sampleconfig	36s
lint	25s
Typechecking	1m 21s
check-schema-delta	44s
lint-clippy	0s
lint-clippy-nightly	0s
lint-pydantic	39s
lint-rustfmt	0s
lint-readme	0s
linting-done	3s
calculate-test-jobs	7s
complement (monolith, SQLite)	13m 14s
cargo-bench	0s
cargo-test	0s
complement (monolith, Postgres)	14m 23s
portdb (3.9, 13)	4m 39s
complement (workers, Postgres)	21m 58s
portdb (3.13, 17)	3m 24s
trial-olddeps	7m 20s
trial-pypy	0s
trial (3.9, sqlite, all)	6m 4s
sytest (bullseye)	8m 9s
trial (3.9, postgres, 13, all)	13m 43s
sytest (bullseye, postgres)	10m 33s
trial (3.9, sqlite)	5m 47s
sytest (bullseye, multi-postgres, workers)	13m 23s
sytest (bullseye, multi-postgres, workers, asyncio)	18m 42s
export-data	2m 26s
tests-done	2s
	2h 28m 26s

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