Update dependency eslint to v7.8.0 (#700)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -31,7 +31,7 @@
         "@typescript-eslint/eslint-plugin": "3.9.1",
         "@typescript-eslint/parser": "3.9.1",
         "babel-jest": "26.3.0",
-        "eslint": "7.7.0",
+        "eslint": "7.8.0",
         "husky": "4.2.5",
         "jest": "26.4.2",
         "lint-staged": "10.2.13",