[`flake8-pyi`] Mark `unaliased-collections-abc-set-import` fix as safe #24090

Job	Run time
pre-commit	25s
Determine changes	8s
cargo fmt	17s
mkdocs	2m 16s
python package	1m 6s
cargo clippy	1m 51s
cargo test (linux)	3m 30s
cargo test (windows)	5m 54s
cargo test (wasm)	1m 5s
benchmarks	6m 23s
cargo fuzz	5m 11s
cargo udeps	1m 52s
formatter instabilities and black similarity	0s
test scripts	49s
test ruff-lsp	20s
ecosystem	10s
	31m 17s

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