chore(deps): update dependency prettier to v2.8.7

Author: renovate[bot]

package.json

@@ -39,7 +39,7 @@
     "isomorphic-fetch": "^3.0.0",
     "lint-staged": "^11.1.2",
     "mocha": "^9.1.1",
-    "prettier": "2.4.1",
+    "prettier": "2.8.7",
     "regenerator-runtime": "^0.13.9",
     "yargs": "^17.1.1"
   },