[red-knot] ruff_db: make diagnostic rendering prettier #39773

Job	Run time
Determine changes	9s
cargo build (release)	0s
mkdocs	2m 40s
cargo fmt	19s
pre-commit	3m 27s
python package	1m 23s
cargo fuzz build	4m 17s
cargo clippy	1m 47s
cargo build (msrv)	5m 18s
benchmarks	5m 11s
cargo shear	22s
cargo test (linux, release)	4m 3s
cargo test (linux)	2m 5s
cargo test (wasm)	1m 35s
cargo test (windows)	6m 29s
formatter instabilities and black similarity	3m 15s
test scripts	1m 29s
test ruff-lsp	40s
ecosystem	4m 2s
fuzz parser	5m 6s
	53m 37s

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