Bump @types/html-webpack-plugin from 3.2.3 to 3.2.6 (#3934)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -274,7 +274,7 @@
     "@types/glob-to-regexp": "^0.4.1",
     "@types/hapi": "^18.0.6",
     "@types/hoist-non-react-statics": "^3.3.1",
-    "@types/html-webpack-plugin": "^3.2.3",
+    "@types/html-webpack-plugin": "^3.2.6",
     "@types/http-proxy": "^1.17.7",
     "@types/jest": "^26.0.22",
     "@types/js-yaml": "^3.12.4",