Bump enzyme-adapter-react-16 from 1.15.6 to 1.15.7

Bumps [enzyme-adapter-react-16](https://github.com/enzymejs/enzyme/tree/HEAD/packages/enzyme-adapter-react-16) from 1.15.6 to 1.15.7.
- [Release notes](https://github.com/enzymejs/enzyme/releases)
- [Changelog](https://github.com/enzymejs/enzyme/blob/master/CHANGELOG.md)
- [Commits](https://github.com/enzymejs/enzyme/commits/[email protected]/packages/enzyme-adapter-react-16)

---
updated-dependencies:
- dependency-name: enzyme-adapter-react-16
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -36,7 +36,7 @@
   "dependencies": {
     "babel-polyfill": "^6.26.0",
     "enzyme": "^3.11.0",
-    "enzyme-adapter-react-16": "^1.15.6",
+    "enzyme-adapter-react-16": "^1.15.7",
     "html-webpack-plugin": "^4.5.0",
     "marked": "^2.0.3",
     "node-sass": "^4.14.1",