Update Rust crate mailchecker to 6.0.18

geneit_backend/Cargo.lock

@@ -2341,9 +2341,9 @@ dependencies = [
 
 [[package]]
 name = "mailchecker"
-version = "6.0.17"
+version = "6.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db3c69370540384985601e4adbbbc3046a658853e4909a4bd744bb390f6f9759"
+checksum = "cf91b5ebc7779f9dd9c59082f569f93b0b6f01cc80dc185bb79146f6ec32e25a"
 dependencies = [
  "fast_chemail",
  "once_cell",

geneit_backend/Cargo.toml

@@ -21,7 +21,7 @@ diesel = { version = "2.2.12", features = ["postgres"] }
 diesel_migrations = "2.2.0"
 serde = { version = "1.0.219", features = ["derive"] }
 serde_json = "1.0.141"
-mailchecker = "6.0.17"
+mailchecker = "6.0.18"
 redis = "0.32.4"
 lettre = "0.11.18"
 rand = "0.9.2"