Fix security vulnerabilities

- fix #1645
- update "lodash" to "^4.17.21"

Author: tschmidtb51

package.json

@@ -51,7 +51,7 @@
   "dependencies": {
     "@types/html-minifier-terser": "^5.0.0",
     "html-minifier-terser": "^5.0.1",
-    "lodash": "^4.17.20",
+    "lodash": "^4.17.21",
     "pretty-error": "^3.0.4",
     "tapable": "^2.0.0"
   },