Upgrade stylelint to version 17.3.0

This is a major version bump, but the changelog at
https://github.com/stylelint/stylelint/releases/tag/17.0.0
doesn't indicate any breaking changes that should impact us.

We only have to list `stylelint` in `eslint.config.js` similar to e.g.
commit a2909f9.

Author: timvandermeij

eslint.config.mjs

@@ -119,6 +119,7 @@ export default [
             "fluent-bundle",
             "fluent-dom",
             "postcss-values-parser",
+            "stylelint",
             // See https://github.com/firebase/firebase-admin-node/discussions/1359.
             "eslint-plugin-perfectionist",
           ],