Optimise notifier mk2 #3387

Job	Run time
changes	4s
check-lockfile	5s
lint-crlf	7s
lint-newsfile	38s
check-sampleconfig	48s
lint	23s
Typechecking	1m 35s
check-schema-delta	45s
lint-clippy	0s
lint-clippy-nightly	0s
lint-pydantic	40s
lint-readme	0s
lint-rustfmt	0s
linting-done	4s
calculate-test-jobs	4s
trial-olddeps	8m 20s
portdb (3.8, 11)	3m 13s
trial-pypy	0s
complement (monolith, SQLite)	13m 11s
portdb (3.11, 15)	3m 0s
complement (monolith, Postgres)	14m 7s
cargo-bench	0s
complement (workers, Postgres)	22m 0s
cargo-test	0s
trial (3.8, sqlite, all)	6m 13s
trial (3.8, postgres, 11, all)	14m 16s
sytest (focal)	9m 44s
trial (3.8, sqlite)	5m 39s
sytest (focal, postgres)	10m 53s
sytest (focal, multi-postgres, workers)	14m 19s
sytest (focal, multi-postgres, workers, asyncio)	19m 20s
export-data	2m 11s
tests-done	2s
	2h 31m 41s

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