[`pylint`] Implement `singledispatch-method` (`E1519`) #25214

Job	Run time
pre-commit	53s
python package	1m 16s
Determine changes	11s
cargo fmt	12s
mkdocs	1m 58s
cargo clippy	2m 0s
cargo test (wasm)	1m 18s
cargo test (linux)	3m 36s
cargo test (windows)	6m 19s
cargo udeps	1m 47s
cargo fuzz	5m 20s
test scripts	54s
benchmarks	4m 56s
formatter instabilities and black similarity	0s
test ruff-lsp	13s
ecosystem	8m 13s
	39m 6s

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