Bump eslint from 6.8.0 to 7.8.1 (#126)

Bumps [eslint](https://github.com/eslint/eslint) from 6.8.0 to 7.8.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v6.8.0...v7.8.1)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

package.json

@@ -54,7 +54,7 @@
     "cross-env": "^7.0.0",
     "enzyme": "^3.3.0",
     "enzyme-to-json": "^3.4.0",
-    "eslint": "^6.8.0",
+    "eslint": "^7.8.1",
     "father": "^2.13.2",
     "less": "^3.10.3",
     "np": "^6.0.0",