[red-knot] Typeshed patching: use build.rs instead of workflow #38535

Job	Run time
Determine changes	9s
cargo build (release)	0s
mkdocs	2m 26s
cargo fmt	19s
pre-commit	3m 8s
python package	1m 17s
cargo build (msrv)	4m 22s
benchmarks	5m 1s
cargo clippy	1m 53s
cargo fuzz build	5m 19s
cargo shear	23s
cargo test (linux)	1m 48s
cargo test (linux, release)	3m 41s
cargo test (wasm)	1m 36s
cargo test (windows)	4m 27s
formatter instabilities and black similarity	0s
test scripts	1m 0s
test ruff-lsp	36s
ecosystem	2m 37s
fuzz parser	0s
	40m 2s

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