chore(deps): bump preact-render-to-string from 6.5.5 to 6.5.9

Bumps [preact-render-to-string](https://github.com/preactjs/preact-render-to-string) from 6.5.5 to 6.5.9.
- [Release notes](https://github.com/preactjs/preact-render-to-string/releases)
- [Changelog](https://github.com/preactjs/preact-render-to-string/blob/main/CHANGELOG.md)
- [Commits](preactjs/preact-render-to-string@v6.5.5...v6.5.9)

---
updated-dependencies:
- dependency-name: preact-render-to-string
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -59,7 +59,7 @@
     "openid-client": "^5.6.5",
     "piping-server": "^1.12.9",
     "preact": "^10.22.0",
-    "preact-render-to-string": "^6.5.5",
+    "preact-render-to-string": "^6.5.9",
     "useragent": "^2.3.0",
     "yargs": "^17.7.2",
     "zod": "^3.22.5"