Update validator requirement from 0.18.1 to 0.19.0

Updates the requirements on [validator](https://github.com/Keats/validator) to permit the latest version.
- [Changelog](https://github.com/Keats/validator/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Keats/validator/commits)

---
updated-dependencies:
- dependency-name: validator
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -88,4 +88,4 @@ tower-sessions = { version = "0.12.2", features = ["axum-core", "private"] }
 tower-sessions-moka-store = "0.13.0"
 tower-sessions-redis-store = "0.13.0"
 url = "2.5.2"
-validator = { version = "0.18.1", features = ["derive"] }
+validator = { version = "0.19.0", features = ["derive"] }