chore(deps): update dev dependency prettier to v2.2.0 (#757)

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

Author: renovate[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "jest-puppeteer": "4.4.0",
     "lint-staged": "10.5.1",
     "microbundle": "^0.12.4",
-    "prettier": "2.1.2",
+    "prettier": "2.2.0",
     "prettier-package-json": "2.1.3",
     "puppeteer": "5.4.1",
     "rimraf": "3.0.2",