Bump prettier from 1.19.1 to 2.3.1 (#3)

Bumps [prettier](https://github.com/prettier/prettier) from 1.19.1 to 2.3.1.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/1.19.1...2.3.1)

---
updated-dependencies:
- dependency-name: prettier
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package-lock.json

@@ -704,9 +704,9 @@
       }
     },
     "prettier": {
-      "version": "1.19.1",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-1.19.1.tgz",
-      "integrity": "sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==",
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.3.1.tgz",
+      "integrity": "sha512-p+vNbgpLjif/+D+DwAZAbndtRrR0md0MwfmOVN9N+2RgyACMT+7tfaRnT+WDPkqnuVwleyuBIG2XBxKDme3hPA==",
       "dev": true
     },
     "pump": {

package.json

@@ -28,7 +28,7 @@
     "@types/node": "^12.0.4",
     "@types/semver": "^7.3.6",
     "husky": "^2.3.0",
-    "prettier": "^1.17.1",
+    "prettier": "^2.3.1",
     "typescript": "^3.5.1"
   },
   "husky": {