Fix @nfrasser/simple-html-tokenizer version to 0.5.11-1

To prevent potential XSS issue. Fixes #371

Author: Nick Frasser

package-lock.json

@@ -26,7 +26,6 @@
     "@babel/eslint-plugin": "^7.13.10",
     "@babel/preset-env": "^7.13.10",
     "@babel/register": "^7.13.8",
-    "@nfrasser/simple-html-tokenizer": "^0.5.11-1",
     "@rollup/plugin-babel": "^5.3.0",
     "@rollup/plugin-commonjs": "^17.1.0",
     "@rollup/plugin-node-resolve": "^11.2.0",