Bump webpack-cli from 3.3.0 to 3.3.1 (#1077)

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 3.3.0 to 3.3.1.
<details>
<summary>Release notes</summary>

*Sourced from [webpack-cli's releases](https://github.com/webpack/webpack-cli/releases).*

> ## Webpack-CLI v.3.3.1
> Version 3.3.1 comes with infrastructure fixes and various of improvements to the repository. Full changelog found [here](https://github.com/webpack/webpack-cli/blob/master/CHANGELOG.md#331-2019-04-21)
</details>
<details>
<summary>Changelog</summary>

*Sourced from [webpack-cli's changelog](https://github.com/webpack/webpack-cli/blob/master/CHANGELOG.md).*

> # 3.3.1 (2019-04-21)
> [Full Changelog](webpack/webpack-cli@v0.1.5...v3.3.1)
> 
> ## New Features
> 
> * terser: clean old files ([89e6b74](webpack/webpack-cli@89e6b74))
> * terser: remove leftover files ([27d5b4d](webpack/webpack-cli@27d5b4d))
> * terser: replace after merging master ([c404655](webpack/webpack-cli@c404655))
> * replace Uglify with Terser in generators ([2b8651b](webpack/webpack-cli@2b8651b))
> * use terserPlugin in loaderOptionsPlugin ([14f5337](webpack/webpack-cli@14f5337))
> * use terserJsPlugin for transformations during migrate ([33c6185](webpack/webpack-cli@33c6185))
> * replace uglifyJsPlugin with terserPlugin in migrate ([d467f3b](webpack/webpack-cli@d467f3b))
> * opencollective prompt: work on windows setting atime by code ([3af73a8](webpack/webpack-cli@3af73a8))
> * opencollective prompt: fix typo ([c2351b1](webpack/webpack-cli@c2351b1))
> * opencollective prompt: remove .lastocprint file from fs ([b96ad56](webpack/webpack-cli@b96ad56))
> * opencollective prompt: extract weekday to variable ([790d27a](webpack/webpack-cli@790d27a))
> * opencollective prompt: set terminal cols to 80 ([badc32d](webpack/webpack-cli@badc32d))
> * opencollective prompt: fix azure ci ([ea0039a](webpack/webpack-cli@ea0039a))
> * opencollective prompt: lint ([ea906d8](webpack/webpack-cli@ea906d8))
> * opencollective prompt: clear package.json modifications ([f080733](webpack/webpack-cli@f080733))
> * opencollective prompt: add prompt in postinstall script ([dd9d528](webpack/webpack-cli@dd9d528))
> 
> ## Ast
> 
> * change tooltip property from uglify to terser ([ea9e4b8](webpack/webpack-cli@ea9e4b8))
> * replace requires and inits for uglify with terser ([3011a6c](webpack/webpack-cli@3011a6c))
> * replace UglifyJsPlugin with TerserPlugin ([21da35f](webpack/webpack-cli@21da35f))
> 
> ## Chore
> 
> * cli: move constants to a separate file ([#798](https://github-redirect.dependabot.com/webpack/webpack-cli/pull/798))
> * deps: upgrade lerna to fix vulnerabilities & update webpack-dev-server ([#823](https://github-redirect.dependabot.com/webpack/webpack-cli/pull/823))
> * docs: removes scaffolding docs from the root ([8c1db03](webpack/webpack-cli@8c1db03))
> * junit: reverting the junit.xml ([80fd4fa](webpack/webpack-cli@80fd4fa))
> * tests: updated test regex, some helper scripts ([#809](https://github-redirect.dependabot.com/webpack/webpack-cli/pull/809))
> * types: add type information ([#791](https://github-redirect.dependabot.com/webpack/webpack-cli/pull/791))
> * replace instances of uglify with terser ([f9cb8ce](webpack/webpack-cli@f9cb8ce))
> * use actual package name in comment about removing uglify ([b1cf4cc](webpack/webpack-cli@b1cf4cc))
> * align file in the same way as other terserPlugin test fixtures ([b6c6484](webpack/webpack-cli@b6c6484))
> * remove gitHash from package.json ([2af08be](webpack/webpack-cli@2af08be))
> 
> ## Docs
> 
> * contributing: fixes dead  link ([#835](https://github-redirect.dependabot.com/webpack/webpack-cli/pull/835))
> * opencollective prompt: improve code clarity ([55992a4](webpack/webpack-cli@55992a4))
> * packages: adds downloads/month shield ([6a0375a](webpack/webpack-cli@6a0375a))
> * readme: adds contributors shield ([958d064](webpack/webpack-cli@958d064))
> * README: phrase change ([3a11a16](webpack/webpack-cli@3a11a16))
> * README: add link to webpack-scaffold-starter ([e35a194](webpack/webpack-cli@e35a194))
> * README: update scaffolding links ([74179b5](webpack/webpack-cli@74179b5))
></tr></table> ... (truncated)
</details>
<details>
<summary>Commits</summary>

- [`d3f8e20`](webpack/webpack-cli@d3f8e20) chore: v.3.1.1
- [`f371e72`](webpack/webpack-cli@f371e72) Merge pull request [#847](https://github-redirect.dependabot.com/webpack/webpack-cli/issues/847) from anshumanv/846
- [`da9e732`](webpack/webpack-cli@da9e732) Merge pull request [#841](https://github-redirect.dependabot.com/webpack/webpack-cli/issues/841) from pranshuchittora/docs-remove
- [`cb68b1b`](webpack/webpack-cli@cb68b1b) docs(serve): link to webpack-dev-server
- [`f7451d4`](webpack/webpack-cli@f7451d4) docs(serve): update docs to use webpack-dev-server
- [`06b4929`](webpack/webpack-cli@06b4929) Remove tslint in favour of eslint ([#834](https://github-redirect.dependabot.com/webpack/webpack-cli/issues/834))
- [`8c1db03`](webpack/webpack-cli@8c1db03) chore(docs): removes scaffolding docs from the root
- [`dc941e6`](webpack/webpack-cli@dc941e6) docs(contributing): fixes dead  link ([#835](https://github-redirect.dependabot.com/webpack/webpack-cli/issues/835))
- [`b8d5511`](webpack/webpack-cli@b8d5511) Merge pull request [#832](https://github-redirect.dependabot.com/webpack/webpack-cli/issues/832) from pranshuchittora/docs
- [`6a0375a`](webpack/webpack-cli@6a0375a) docs(packages): adds downloads/month shield
- Additional commits viewable in [compare view](webpack/webpack-cli@v.3.3.0...v.3.3.1)
</details>
<br />

[![Dependabot compatibility score](https://api.dependabot.com/badges/compatibility_score?dependency-name=webpack-cli&package-manager=npm_and_yarn&previous-version=3.3.0&new-version=3.3.1)](https://dependabot.com/compatibility-score.html?dependency-name=webpack-cli&package-manager=npm_and_yarn&previous-version=3.3.0&new-version=3.3.1)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

[//]: # (dependabot-automerge-start)
Dependabot will merge this PR once it's up-to-date and CI passes on it, as requested by @skjnldsv.

[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot ignore this [patch|minor|major] version` will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
- `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language
- `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language
- `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language
- `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language
- `@dependabot badge me` will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot [dashboard](https://app.dependabot.com):
- Update frequency (including time of day and day of week)
- Automerge options (never/patch/minor, and dev/runtime dependencies)
- Pull request limits (per update run and/or open at any time)
- Out-of-range updates (receive only lockfile updates, if desired)
- Security updates (receive only security updates, if desired)

Finally, you can contact us by mentioning @dependabot.

</details>

package.json

@@ -96,7 +96,7 @@
 		"vue-loader": "^15.7.0",
 		"vue-template-compiler": "^2.6.10",
 		"webpack": "^4.30.0",
-		"webpack-cli": "^3.3.0",
+		"webpack-cli": "^3.3.1",
 		"webpack-merge": "^4.2.1",
 		"webpack-node-externals": "^1.7.2"
 	}