chore(deps): bump rollup in /packages/frontend-embed

Bumps [rollup](https://github.com/rollup/rollup) from 4.22.2 to 4.22.4.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v4.22.2...v4.22.4)

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

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

packages/frontend-embed/package.json

@@ -33,7 +33,7 @@
 		"misskey-js": "workspace:*",
 		"frontend-shared": "workspace:*",
 		"punycode": "2.3.1",
-		"rollup": "4.22.2",
+		"rollup": "4.22.4",
 		"sanitize-html": "2.13.0",
 		"sass": "1.79.3",
 		"shiki": "1.12.0",