Document `literal-membership` fix safety conditions #24083

Job	Run time
Determine changes	8s
pre-commit	24s
cargo fmt	14s
python package	1m 13s
mkdocs	2m 7s
cargo test (wasm)	1m 15s
cargo test (windows)	6m 12s
cargo clippy	1m 40s
cargo test (linux)	3m 29s
cargo fuzz	5m 7s
cargo udeps	1m 54s
test scripts	45s
formatter instabilities and black similarity	0s
benchmarks	6m 17s
test ruff-lsp	19s
ecosystem	8m 48s
	39m 52s

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