Update config.toml (#3832)

Signed-off-by: Ken <131881470+Keniis0712@users.noreply.github.com>

.cargo/config.toml

@@ -1,6 +1,6 @@
 # Windows has stack overflows when calling from Tauri, so we increase the default stack size used by the compiler
 [target.'cfg(windows)']
-rustflags = ["-C", "link-args=/STACK:16777220"]
+rustflags = ["-C", "link-args=/STACK:16777220", "--cfg", "tokio_unstable"]
 
 [build]
 rustflags = ["--cfg", "tokio_unstable"]