Sliding Sync: Batch up fetching receipts #2755

Job	Run time
changes	2s
check-lockfile	7s
lint-crlf	4s
lint-newsfile	33s
lint	45s
check-schema-delta	38s
check-sampleconfig	57s
lint-clippy	0s
Typechecking	1m 24s
lint-clippy-nightly	0s
lint-pydantic	51s
lint-readme	0s
lint-rustfmt	0s
linting-done	2s
calculate-test-jobs	6s
trial-olddeps	8m 3s
portdb (3.8, 11)	2m 55s
complement (monolith, SQLite)	12m 33s
trial-pypy	0s
portdb (3.11, 15)	2m 47s
complement (monolith, Postgres)	13m 57s
complement (workers, Postgres)	20m 51s
cargo-bench	0s
cargo-test	0s
trial (3.8, sqlite, all)	5m 25s
sytest (focal)	8m 29s
trial (3.8, postgres, 11, all)	11m 49s
sytest (focal, postgres)	10m 27s
trial (3.8, sqlite)	4m 45s
sytest (focal, multi-postgres, workers)	13m 25s
sytest (focal, multi-postgres, workers, asyncio)	19m 24s
export-data	2m 18s
tests-done	2s
	2h 22m 39s

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