evgrd: change darkfi-serial from path=... to version=0.4.2

script/evgrd/Cargo.toml

@@ -23,7 +23,7 @@ path = "example/send.rs"
 
 [dependencies]
 darkfi = {path = "../../", features = ["event-graph"]}
-darkfi-serial = {path = "../../src/serial", features = ["async"]}
+darkfi-serial = {version = "0.4.2", features = ["async"]}
 
 # Event Graph DB
 sled-overlay = "0.1.4"