Bump @web/rollup-plugin-html from 2.3.0 to 2.4.0

Bumps [@web/rollup-plugin-html](https://github.com/modernweb-dev/web/tree/HEAD/packages/rollup-plugin-html) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/modernweb-dev/web/releases)
- [Changelog](https://github.com/modernweb-dev/web/blob/master/packages/rollup-plugin-html/CHANGELOG.md)
- [Commits](https://github.com/modernweb-dev/web/commits/@web/rollup-plugin-html@2.4.0/packages/rollup-plugin-html)

---
updated-dependencies:
- dependency-name: "@web/rollup-plugin-html"
  dependency-version: 2.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -33,7 +33,7 @@
     "@open-wc/testing": "^4.0.0",
     "@web/dev-server": "^0.4.6",
     "@web/dev-server-esbuild": "^1.0.4",
-    "@web/rollup-plugin-html": "^2.3.0",
+    "@web/rollup-plugin-html": "^2.4.0",
     "@web/test-runner": "^0.20.2",
     "eslint": "^9.39.1",
     "open-props": "^1.7.16",