Avoid incorrect tuple transformation in single-element case (`C409`) #26018

Job	Run time
cargo fmt	15s
Determine changes	12s
pre-commit	38s
mkdocs	2m 15s
python package	1m 11s
cargo test (linux)	4m 1s
benchmarks	4m 26s
cargo fuzz	5m 11s
cargo clippy	1m 57s
cargo test (wasm)	1m 17s
cargo test (windows)	7m 33s
cargo udeps	1m 56s
test scripts	52s
formatter instabilities and black similarity	0s
test ruff-lsp	14s
ecosystem	8m 22s
	40m 20s

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