chore: Bump mailchecker from 5.0.2 to 5.0.3 (#1201)

Bumps [mailchecker](https://github.com/FGRibreau/mailchecker) from 5.0.2 to 5.0.3.
- [Release notes](https://github.com/FGRibreau/mailchecker/releases)
- [Changelog](https://github.com/FGRibreau/mailchecker/blob/master/CHANGELOG.md)
- [Commits](FGRibreau/mailchecker@v5.0.2...v5.0.3)

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

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -22,7 +22,7 @@ fantoccini = { version = "0.19.3", optional = true }
 futures = { version = "0.3.24", optional = true }
 fast-socks5 = "0.8.1"
 log = "0.4.17"
-mailchecker = "5.0.2"
+mailchecker = "5.0.3"
 rand = { version = "0.8.5", features = ["small_rng"] }
 regex = "1.6.0"
 reqwest = { version = "0.11.12", features = ["json", "socks"] }