Split up `SyncHandler.compute_state_delta` #474

Job	Run time
changes	2s
changes	2s
check-lockfile	7s
check-lockfile	7s
lint-crlf	4s
lint-crlf	4s
lint-newsfile	33s
lint-newsfile	33s
check-sampleconfig	40s
check-sampleconfig	40s
check-schema-delta	36s
check-schema-delta	36s
lint	56s
lint	56s
lint-clippy	0s
lint-clippy	0s
Typechecking	1m 37s
Typechecking	1m 37s
lint-pydantic	48s
lint-pydantic	48s
lint-clippy-nightly	0s
lint-clippy-nightly	0s
lint-rustfmt	0s
lint-rustfmt	0s
linting-done	2s
linting-done	2s
calculate-test-jobs	8s
calculate-test-jobs	8s
trial-olddeps	7m 55s
trial-olddeps	7m 55s
portdb (3.8, 11)	3m 21s
portdb (3.8, 11)	3m 21s
complement (monolith, SQLite)	12m 23s
complement (monolith, SQLite)	12m 23s
trial-pypy	0s
trial-pypy	0s
portdb (3.11, 15)	2m 48s
portdb (3.11, 15)	2m 48s
complement (monolith, Postgres)	12m 50s
complement (monolith, Postgres)	12m 50s
complement (workers, Postgres)	19m 51s
complement (workers, Postgres)	19m 51s
cargo-bench	0s
cargo-bench	0s
cargo-test	0s
cargo-test	0s
trial (3.8, sqlite, all)	4m 10s
trial (3.8, sqlite, all)	4m 10s
trial (3.8, postgres, 11, all)	9m 50s
trial (3.8, postgres, 11, all)	9m 50s
sytest (focal)	8m 20s
sytest (focal)	8m 20s
trial (3.8, sqlite)	3m 52s
trial (3.8, sqlite)	3m 52s
sytest (focal, postgres)	10m 19s
sytest (focal, postgres)	10m 19s
sytest (focal, multi-postgres, workers)	12m 57s
sytest (focal, multi-postgres, workers)	13m 25s
sytest (focal, multi-postgres, workers, asyncio)	19m 13s
sytest (focal, multi-postgres, workers, asyncio)	19m 13s
export-data	2m 4s
export-data	2m 4s
tests-done	1s
tests-done	2s
	4h 31m 23s

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