Update minor devDeps

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@storybook/react	devDependencies	patch	5.3.10 -> 5.3.12
rimraf	devDependencies	patch	3.0.1 -> 3.0.2
webpack-dev-server	devDependencies	patch	3.10.2 -> 3.10.3

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Release Notes

storybookjs/storybook

### [`v5.3.12`](https://togithub.com/storybookjs/storybook/blob/master/CHANGELOG.md#​5312-February-5-2020) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v5.3.11...v5.3.12) ##### Bug Fixes - Core: Fix dev server error - back out bad change ([#​9753](https://togithub.com/storybookjs/storybook/pull/9753)) ### [`v5.3.11`](https://togithub.com/storybookjs/storybook/blob/master/CHANGELOG.md#​5311-February-4-2020) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v5.3.10...v5.3.11) ##### Bug Fixes - Svelte: Fix Svelte 3 slots for decorators ([#​9724](https://togithub.com/storybookjs/storybook/pull/9724)) - CLI: Fix file path for Button story ([#​9325](https://togithub.com/storybookjs/storybook/pull/9325)) - Angular: Emit decorator metadata by default ([#​9701](https://togithub.com/storybookjs/storybook/pull/9701)) - Storyshots: Fix config via main.ts ([#​9577](https://togithub.com/storybookjs/storybook/pull/9577))

isaacs/rimraf

### [`v3.0.2`](https://togithub.com/isaacs/rimraf/compare/v3.0.1...v3.0.2) [Compare Source](https://togithub.com/isaacs/rimraf/compare/v3.0.1...v3.0.2)

webpack/webpack-dev-server

### [`v3.10.3`](https://togithub.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md#​3103httpsgithubcomwebpackwebpack-dev-servercomparev3102v3103-2020-02-05) [Compare Source](https://togithub.com/webpack/webpack-dev-server/compare/v3.10.2...v3.10.3)

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