windows: enable winapi std for RawHandle interop

[iiTONELOC]

Cargo resolver 2 keeps features enabled only by dev-dependencies out of normal dependencies.

Under resolver 2, a Windows consumer fails at DeviceCapabilities::new(self.file.as_raw_handle()) because core::ffi::c_void and winapi::ctypes::c_void are different types. The package's legacy-resolver dev build hides this because rpassword enables winapi/std.

Enabling std on the direct Windows winapi dependency makes the raw-handle types compatible without relying on feature unification from an unrelated dev-dependency.

A minimal resolver-2 consumer on Rust 1.97 targeting x86_64-pc-windows-msvc fails before this patch and passes afterward. cargo test --features crypto_dummy --no-default-features also passes.