chore(dependencies): update dependency rollup to v2.80.0 [security]

Author: renovate[bot]

package-lock.json

@@ -53,7 +53,7 @@
     "jest": "26.6.3",
     "lolex": "6.0.0",
     "markdown-toc": "1.2.0",
-    "rollup": "2.70.2",
+    "rollup": "2.80.0",
     "rollup-plugin-babel": "4.4.0",
     "rollup-plugin-commonjs": "10.1.0",
     "rollup-plugin-hashbang": "2.2.2",