Bump danger from 6.1.12 to 7.0.1 (#2600)

Bumps [danger](https://github.com/danger/danger-js) from 6.1.12 to 7.0.1.
- [Release notes](https://github.com/danger/danger-js/releases)
- [Changelog](https://github.com/danger/danger-js/blob/master/CHANGELOG.md)
- [Commits](danger/danger-js@6.1.12...7.0.1)

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

package.json

@@ -127,7 +127,7 @@
     "chainsmoker": "^0.1.0",
     "child-process-promise": "^2.2.1",
     "concurrently": "^4.1.0",
-    "danger": "^6.1.12",
+    "danger": "^7.0.1",
     "danger-plugin-no-test-shortcuts": "^2.0.0",
     "enzyme": "^3.8.0",
     "enzyme-adapter-react-16": "^1.7.1",