Update Rust crate rand to 0.9

Author: renovate[bot]

Cargo.toml

@@ -7,7 +7,7 @@ version = "1.0.1"
 base64 = "0.9.3"
 challenge-bypass-ristretto = { version = "1.0.1", features = ["base64"] }
 hmac = "0.10"
-rand = "0.7"
+rand = "0.9"
 sha2 = "0.9"
 
 [lib]