[red-knot] Minor follow-up on slice expression inference #34668

Job	Run time
pre-commit	34s
mkdocs	2m 56s
cargo fmt	16s
Determine changes	8s
python package	1m 19s
cargo clippy	1m 53s
cargo build (release)	5m 13s
cargo build (msrv)	3m 31s
benchmarks	4m 33s
cargo fuzz	4m 43s
cargo shear	27s
cargo test (linux)	4m 4s
cargo test (wasm)	1m 33s
cargo test (windows)	9m 8s
test scripts	1m 1s
formatter instabilities and black similarity	0s
test ruff-lsp	22s
Fuzz the parser	0s
ecosystem	8m 42s
	50m 23s

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