Update Rust crate lettre to v0.11.8 (#9382)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Cargo.lock

@@ -91,7 +91,7 @@ indexmap = { version = "=2.5.0", features = ["serde"] }
 indicatif = "=0.17.8"
 ipnetwork = "=0.20.0"
 tikv-jemallocator = { version = "=0.6.0", features = ['unprefixed_malloc_on_supported_platforms', 'profiling'] }
-lettre = { version = "=0.11.7", default-features = false, features = ["file-transport", "smtp-transport", "native-tls", "hostname", "builder"] }
+lettre = { version = "=0.11.8", default-features = false, features = ["file-transport", "smtp-transport", "native-tls", "hostname", "builder"] }
 minijinja = "=2.2.0"
 mockall = "=0.13.0"
 native-tls = "=0.2.12"