Update Rust edition

Gianmarco Garrisi · Gianmarco Garrisi · commit a57541cabadb · 2023-11-25T09:33:40.000+01:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -9,7 +9,7 @@ keywords =  ["simulation", "framework", "time", "discrete", "events"]
 categories = ["simulation", "science"]
 license = "GPL-3.0"
 
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 
