Update quick-xml requirement from 0.29.0 to 0.31.0

Updates the requirements on [quick-xml](https://github.com/tafia/quick-xml) to permit the latest version.
- [Release notes](https://github.com/tafia/quick-xml/releases)
- [Changelog](https://github.com/tafia/quick-xml/blob/master/Changelog.md)
- [Commits](tafia/quick-xml@v0.29.0...v0.31.0)

---
updated-dependencies:
- dependency-name: quick-xml
  dependency-type: direct:production
...

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

helper/Cargo.toml

@@ -17,15 +17,15 @@ cvss = { path = "../cvss" }
 nvd-api = { path = "../nvd-api" }
 serde_json = "1.0"
 serde = { version = "1", features = ["derive"] }
-quick-xml = { version = "0.29.0", features = ["serde", "encoding_rs", "serialize"] }
+quick-xml = { version = "0.31.0", features = ["serde", "encoding_rs", "serialize"] }
 serde_yaml = "0.9"
 flate2 = "1.0"
 zip = "0.6"
 cached = "0.44.0"
 tokio = { version = "1.34.0", features = ["full"] }
 [dev-dependencies]
 serde = { version = "1", features = ["derive"] }
-quick-xml = { version = "0.29.0", features = ["serde", "encoding_rs", "serialize"] }
+quick-xml = { version = "0.31.0", features = ["serde", "encoding_rs", "serialize"] }
 serde_yaml = "0.9"
 serde_json = "1.0"
 flate2 = "1.0"