Update dependency eslint-config-prettier to v7 (#851)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package-lock.json

@@ -13,7 +13,7 @@
         "chalk": "4.1.0",
         "commander": "6.2.0",
         "cson-parser": "4.0.7",
-        "eslint-config-prettier": "6.15.0",
+        "eslint-config-prettier": "7.0.0",
         "glob": "7.1.6",
         "json5": "2.1.3",
         "lodash": "4.17.20",