Don't try and resync devices for down hosts #1548

Job	Run time
lint-crlf	5s
changes	2s
check-lockfile	5s
lint-newsfile	39s
Typechecking	1m 23s
lint	49s
check-sampleconfig	41s
check-schema-delta	39s
lint-clippy	0s
lint-clippy-nightly	0s
lint-pydantic	44s
lint-rustfmt	0s
linting-done	2s
calculate-test-jobs	5s
trial-olddeps	7m 49s
portdb (3.8, 11)	2m 50s
trial-pypy	0s
portdb (3.11, 15)	2m 53s
cargo-bench	0s
cargo-test	0s
complement (monolith, SQLite)	12m 48s
complement (monolith, Postgres)	13m 26s
complement (workers, Postgres)	20m 36s
trial (3.8, sqlite, all)	4m 35s
sytest (focal)	8m 57s
sytest (focal, postgres)	10m 13s
trial (3.8, postgres, 11, all)	10m 36s
sytest (focal, multi-postgres, workers)	13m 48s
trial (3.8, sqlite)	4m 1s
sytest (focal, multi-postgres, workers, asyncio)	19m 11s
export-data	2m 17s
tests-done	7s
	2h 19m 21s

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