Bump rimraf from 2.6.3 to 3.0.2

Bumps [rimraf](https://github.com/isaacs/rimraf) from 2.6.3 to 3.0.2.
- [Release notes](https://github.com/isaacs/rimraf/releases)
- [Changelog](https://github.com/isaacs/rimraf/blob/master/CHANGELOG.md)
- [Commits](isaacs/rimraf@v2.6.3...v3.0.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -131,7 +131,7 @@
     "reflux": "^0.4.1",
     "reflux-state-mixin": "^0.7.0",
     "resolve": "^1.4.0",
-    "rimraf": "^2.6.1",
+    "rimraf": "^3.0.2",
     "semver": "^5.4.1",
     "shebang-loader": "0.0.1",
     "sinon": "^3.2.0",