chore(deps-dev): bump cross-env from 6.0.0 to 7.0.2

Bumps [cross-env](https://github.com/kentcdodds/cross-env) from 6.0.0 to 7.0.2.
- [Release notes](https://github.com/kentcdodds/cross-env/releases)
- [Changelog](https://github.com/kentcdodds/cross-env/blob/master/CHANGELOG.md)
- [Commits](kentcdodds/cross-env@v6.0.0...v7.0.2)

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

package.json

@@ -51,7 +51,7 @@
     "codeclimate-test-reporter": "0.5.1",
     "coffee-script": "1.12.7",
     "coveralls": "3.1.0",
-    "cross-env": "6.0.0",
+    "cross-env": "7.0.2",
     "cz-conventional-changelog": "3.0.2",
     "eslint": "6.3.0",
     "eslint-config-canonical": "17.7.0",