Update dependency rollup to ^2.56.0 (#208)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package-lock.json

@@ -65,7 +65,7 @@
     "mime": "^2.5.2",
     "postcss": "^8.3.6",
     "puppeteer": "^10.1.0",
-    "rollup": "^2.55.1",
+    "rollup": "^2.56.1",
     "rollup-plugin-postcss": "^4.0.0",
     "source-map": "0.8.0-beta.0"
   },