[`pylint`] Implement `assigning-non-slot` (`E0237`) #23914

Job	Run time
mkdocs	1m 57s
pre-commit	32s
cargo fmt	15s
Determine changes	8s
python package	1m 8s
cargo test (linux)	3m 42s
benchmarks	6m 5s
cargo clippy	1m 42s
cargo fuzz	5m 25s
cargo test (wasm)	1m 19s
cargo test (windows)	5m 9s
cargo udeps	1m 46s
formatter instabilities and black similarity	0s
test scripts	49s
test ruff-lsp	17s
ecosystem	8m 47s
	39m 1s

Provide feedback