Merge pull request #314 from yanamura/dependabot/npm_and_yarn/prettier-2.7.1

Upgrade: bump prettier from 2.6.2 to 2.7.1

Author: yanamura

package-lock.json

@@ -21,7 +21,7 @@
         "eslint-plugin-github": "^4.3.2",
         "eslint-plugin-jest": "^26.5.3",
         "js-yaml": "^4.1.0",
-        "prettier": "^2.6.2",
+        "prettier": "^2.7.1",
         "ts-jest": "^27.1.3",
         "typescript": "^4.7.4"
     }