Bump markup5ever from 0.12.1 to 0.14.1 in /native/html5ever_nif

Bumps [markup5ever](https://github.com/servo/html5ever) from 0.12.1 to 0.14.1.
- [Commits](servo/html5ever@markup5ever-v0.12.1...html5ever-v0.14.1)

---
updated-dependencies:
- dependency-name: markup5ever
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

native/html5ever_nif/Cargo.lock

@@ -14,7 +14,7 @@ crate-type = ["cdylib"]
 rustler = { version = "0.36", default-features = false, features = ["nif_version_2_15"] }
 
 html5ever = "0.27"
-markup5ever = "0.12"
+markup5ever = "0.14"
 
 tendril = "0.4"
 lazy_static = "1.5"