wallet: Cargo.toml make darkfi-serial use ../../ instead of git url

bin/darkwallet/Cargo.toml

@@ -15,7 +15,7 @@ image = "0.24"
 log = "0.4.19"
 glam = "0.27.0"
 zmq = "0.10.0"
-darkfi-serial = { git = "https://codeberg.org/darkrenaissance/darkfi" }
+darkfi-serial = { path = "../../src/serial" }
 thiserror = "1.0.57"
 # Only for async Mutex
 smol = "1.3.0"