Update roxmltree requirement from 0.19.0 to 0.20.0

Updates the requirements on [roxmltree](https://github.com/RazrFalcon/roxmltree) to permit the latest version.
- [Changelog](https://github.com/RazrFalcon/roxmltree/blob/master/CHANGELOG.md)
- [Commits](RazrFalcon/roxmltree@v0.19.0...v0.20.0)

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

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

Cargo.toml

@@ -64,7 +64,7 @@ noxious-client = "1.0.4"
 reqwest = { version = "0.12.4", default-features = false, features = ["cookies", "json"] }
 serde_json = "1.0.116"
 anyhow = "1.0.86"
-roxmltree = "0.19.0"
+roxmltree = "0.20.0"
 xmlem = "0.2.3"
 json = "0.12.4"
 mp4 = "0.14.0"