chore: Bump async-native-tls from 0.4.0 to 0.5.0

Bumps [async-native-tls](https://github.com/async-email/async-native-tls) from 0.4.0 to 0.5.0.
- [Release notes](https://github.com/async-email/async-native-tls/releases)
- [Commits](chatmail/async-native-tls@v0.4.0...v0.5.0)

---
updated-dependencies:
- dependency-name: async-native-tls
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -13,7 +13,7 @@ readme = "../README.md"
 repository = "https://github.com/reacherhq/check-if-email-exists"
 
 [dependencies]
-async-native-tls = { version = "0.4", default-features = false }
+async-native-tls = { version = "0.5", default-features = false }
 async-recursion = "1.0.4"
 async-smtp = { version = "0.6.0", features = ["socks5"] }
 async-std = "1.12.0"