Merge pull request #230 from Rustmail/dependabot/cargo/rustmail/rand-0.9.2

Author: dependabot[bot]

rustmail/Cargo.toml

@@ -22,7 +22,7 @@ rust-embed = "8.7.2"
 mime_guess = "2.0.5"
 urlencoding = "2.1.3"
 serde_json = "1.0.145"
-rand = "0.8.5"
+rand = "0.9.2"
 base64 = "0.22.1"
 subtle = "2.6.1"