Bump html-webpack-plugin from 2.29.0 to 3.2.0

Bumps [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin) from 2.29.0 to 3.2.0.
- [Release notes](https://github.com/jantimon/html-webpack-plugin/releases)
- [Changelog](https://github.com/jantimon/html-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](jantimon/html-webpack-plugin@2.29.0...v3.2.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

package-lock.json

@@ -38,7 +38,7 @@
     "extract-text-webpack-plugin": "3.0.2",
     "file-loader": "1.1.11",
     "fs-extra": "3.0.1",
-    "html-webpack-plugin": "2.29.0",
+    "html-webpack-plugin": "3.2.0",
     "jest": "20.0.4",
     "lodash": "^4.17.4",
     "moment": "^2.20.1",