Bump eslint from 6.8.0 to 7.6.0

Bumps [eslint](https://github.com/eslint/eslint) from 6.8.0 to 7.6.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v6.8.0...v7.6.0)

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

package.json

@@ -36,7 +36,7 @@
     "@types/node": "^12.7.12",
     "@typescript-eslint/parser": "^3.9.0",
     "@zeit/ncc": "^0.22.3",
-    "eslint": "^6.8.0",
+    "eslint": "^7.6.0",
     "eslint-plugin-github": "^4.1.1",
     "eslint-plugin-jest": "^23.20.0",
     "jest": "^24.9.0",