Bump lettre from 0.11.7 to 0.11.9

Bumps [lettre](https://github.com/lettre/lettre) from 0.11.7 to 0.11.9.
- [Release notes](https://github.com/lettre/lettre/releases)
- [Changelog](https://github.com/lettre/lettre/blob/master/CHANGELOG.md)
- [Commits](lettre/lettre@v0.11.7...v0.11.9)

---
updated-dependencies:
- dependency-name: lettre
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -27,7 +27,7 @@ dyn-clone = { version = "1.0.17" }
 env_logger = { version = "0.10.2" }
 fernet = { version = "0.2.2" }
 go-parse-duration = { version = "0.1.1" }
-lettre = { version = "0.11.7", features = ["tokio1-native-tls"] }
+lettre = { version = "0.11.9", features = ["tokio1-native-tls"] }
 quoted_printable = { version = "0.5.1" }
 regex = { version = "1.10.6"}
 reqwest = { version = "0.12.4", features = ["json"] }