Fix error in Response::dragged docs #12818

Job	Run time
android	23s
cargo-deny aarch64-apple-darwin	36s
cargo-deny aarch64-linux-android	33s
Check wasm32 + wasm-bindgen	2m 22s
cargo-deny i686-pc-windows-gnu	41s
Check wasm32+atomics	1m 36s
cargo-deny i686-pc-windows-msvc	47s
cargo-deny i686-unknown-linux-gnu	39s
Format + check + test	5m 30s
cargo-deny wasm32-unknown-unknown	39s
ios	29s
cargo-deny x86_64-apple-darwin	41s
cargo-deny x86_64-pc-windows-gnu	33s
cargo-deny x86_64-pc-windows-msvc	44s
Check Windows	1m 41s
cargo-deny x86_64-unknown-linux-gnu	41s
cargo-deny x86_64-unknown-linux-musl	38s
cargo-deny x86_64-unknown-redox	41s
	19m 54s

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