build(deps): update html5ever requirement in /css-inline

Updates the requirements on [html5ever](https://github.com/servo/html5ever) to permit the latest version.
- [Release notes](https://github.com/servo/html5ever/releases)
- [Commits](https://github.com/servo/html5ever/commits)

---
updated-dependencies:
- dependency-name: html5ever
  dependency-version: 0.39.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

css-inline/Cargo.toml

@@ -30,7 +30,7 @@ stylesheet-cache = ["lru"]
 
 [dependencies]
 cssparser = "0.36.0"
-html5ever = "0.38.0"
+html5ever = "0.39.0"
 lru = { version = "0.16.0", optional = true }
 memchr = "2.7"
 precomputed-hash = "0.1.1"