Only build windows dependencies for Windows target

Signed-off-by: Teddy Astie <[email protected]>

Author: TSnake41

xen-guest-agent/Cargo.toml

@@ -31,15 +31,12 @@ sysctl = "0.5.0"
 [target.'cfg(target_family = "unix")'.dependencies]
 syslog = "6.0"
 
-[dependencies.windows]
-version = "0.58"
-features = [
+[target."cfg(windows)".dependencies]
+windows = { version = "0.58", features = [
   "Win32_Foundation",
   "Win32_System_Diagnostics_Debug",
-]
-
-[target."cfg(windows)".dependencies]
+] }
 windows-service = "0.8"
 
 [features]
-netlink = ["dep:provider-netlink"]
+netlink = ["dep:provider-netlink"]