[red-knot] Add boundness and declaredness tests #38728

Job	Run time
Determine changes	13s
cargo build (release)	0s
cargo fmt	19s
mkdocs	2m 41s
pre-commit	3m 11s
python package	1m 27s
cargo clippy	1m 49s
cargo fuzz build	4m 23s
benchmarks	5m 5s
cargo build (msrv)	4m 15s
cargo shear	23s
cargo test (linux)	1m 45s
cargo test (linux, release)	3m 53s
cargo test (wasm)	1m 40s
cargo test (windows)	4m 26s
test scripts	1m 1s
formatter instabilities and black similarity	0s
test ruff-lsp	40s
ecosystem	2m 39s
fuzz parser	0s
	39m 50s

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