Bump attrs from 23.2.0 to 24.2.0 #2830

Job	Run time
changes	4s
check-lockfile	4s
lint-crlf	3s
lint-newsfile	0s
check-schema-delta	43s
Typechecking	3m 18s
lint	3m 40s
lint-pydantic	2m 27s
check-sampleconfig	4m 38s
lint-clippy	0s
lint-readme	0s
lint-clippy-nightly	0s
lint-rustfmt	0s
linting-done	2s
calculate-test-jobs	10s
complement (monolith, SQLite)	12m 56s
trial-olddeps	7m 42s
complement (monolith, Postgres)	13m 29s
trial-pypy	0s
complement (workers, Postgres)	21m 28s
cargo-bench	0s
cargo-test	0s
portdb (3.8, 11)	5m 49s
portdb (3.11, 15)	5m 49s
trial (3.8, sqlite, all)	8m 59s
trial (3.8, postgres, 11, all)	13m 32s
sytest (focal)	8m 16s
trial (3.8, sqlite)	7m 19s
sytest (focal, postgres)	10m 6s
sytest (focal, multi-postgres, workers)	13m 24s
sytest (focal, multi-postgres, workers, asyncio)	19m 55s
export-data	5m 11s
tests-done	2s
	2h 49m 6s

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