fix(deps): update dependency terser-webpack-plugin to v2.1.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
terser-webpack-plugin	dependencies	patch	2.1.2 -> 2.1.3

---

Release Notes

webpack-contrib/terser-webpack-plugin

### [`v2.1.3`](https://togithub.com/webpack-contrib/terser-webpack-plugin/blob/master/CHANGELOG.md#​213httpsgithubcomwebpack-contribterser-webpack-plugincomparev212v213-2019-10-10) [Compare Source](https://togithub.com/webpack-contrib/terser-webpack-plugin/compare/v2.1.2...v2.1.3)

---

Renovate configuration

:date: Schedule: "on tuesday" (UTC).

:vertical_traffic_light: Automerge: Enabled.

:recycle: Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

:no_bell: Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot. View repository job log here.