build(deps): update lru requirement from 0.14.0 to 0.15.0 in /css-inline

Updates the requirements on [lru](https://github.com/jeromefroe/lru-rs) to permit the latest version.
- [Changelog](https://github.com/jeromefroe/lru-rs/blob/master/CHANGELOG.md)
- [Commits](jeromefroe/lru-rs@0.14.0...0.15.0)

---
updated-dependencies:
- dependency-name: lru
  dependency-version: 0.15.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

css-inline/Cargo.toml

@@ -32,7 +32,7 @@ stylesheet-cache = ["lru"]
 cssparser = "0.35.0"
 html5ever = "0.31.0"
 indexmap = "2.1"
-lru = { version = "0.14.0", optional = true }
+lru = { version = "0.15.0", optional = true }
 precomputed-hash = "0.1.1"
 rayon = { version = "1.10", optional = true }
 reqwest = { version = "0.12.0", optional = true, default-features = false, features = ["rustls-tls", "blocking"] }