Fix E203 false positive for slices in format strings #25471

Job	Run time
Determine changes	11s
pre-commit	51s
cargo fmt	16s
mkdocs	1m 59s
python package	1m 22s
benchmarks	4m 38s
cargo test (linux)	3m 40s
cargo fuzz	5m 13s
cargo clippy	2m 11s
cargo test (wasm)	1m 21s
cargo test (windows)	8m 5s
cargo udeps	1m 55s
formatter instabilities and black similarity	0s
test scripts	57s
test ruff-lsp	16s
ecosystem	8m 16s
	41m 11s

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