Update Rust crate rand to 0.9

Reviewed-on: #1

Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-rand = "0.8"
+rand = "0.9"
 postgres = "0.19"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

renovate.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ]
+}