Upgrade prettier to v3 and add scripts

Author: mantoni

.github/workflows/ci.yml

@@ -34,5 +34,7 @@ jobs:
         run: npm ci
       - name: Lint
         run: npm run lint
+      - name: Prettier
+        run: npm run prettier:check
       - name: Test
         run: npm test

package-lock.json

@@ -13,7 +13,9 @@
     "posttest": "npm run lint",
     "preversion": "npm test",
     "version": "bin/cmd.js -c --footer",
-    "postversion": "git push --follow-tags && npm publish"
+    "postversion": "git push --follow-tags && npm publish",
+    "prettier:check": "prettier --check '**/*.{js,json,md}'",
+    "prettier:write": "prettier --write '**/*.{js,json,md}'"
   },
   "keywords": [
     "changelog",
@@ -51,7 +53,7 @@
     "husky": "^4.3.8",
     "lint-staged": "^10.5.4",
     "mocha": "^10.2.0",
-    "prettier": "^2.2.1"
+    "prettier": "^3.1.1"
   },
   "repository": {
     "type": "git",