build(deps): update validator requirement from 0.18 to 0.19

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] <support@github.com>

Cargo.toml

@@ -46,7 +46,7 @@ time = { version = "0.3.36", features = ["serde-human-readable"] }
 tokio = { version = "^1", features = ["rt", "rt-multi-thread"] }
 tracing = "0.1"
 url = { version = "2.2", features = ["serde"] }
-validator = { version = "0.18", features = ["derive"] }
+validator = { version = "0.19", features = ["derive"] }
 wapc = "2.0"
 wasi-common = { workspace = true }
 wasmparser = "0.219"