chore(deps): update dependency prettier to v2 (#468)

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

Author: renovate[bot]

package-lock.json

@@ -59,7 +59,7 @@
     "husky": "^4.3.6",
     "mocha": "^5.0.0",
     "nyc": "^15.1.0",
-    "prettier": "1.19.1",
+    "prettier": "2.2.1",
     "semantic-release": "^17.3.0",
     "semantic-release-vsce": "^3.0.1",
     "semver": "^5.7.1",