chore: update @rollup/plugin-eslint

We have to add *.css and *.svg files to the ignore list because the new plugin version tries to parse these files and fails, cf rollup/plugins#1448

Author: radoering

.eslintrc.js

@@ -9,5 +9,6 @@ module.exports = {
     ecmaVersion: 12,
     sourceType: "module",
   },
+  ignorePatterns: ["**/*.css", "**/*.svg"],
   rules: {},
 }