fix: upgrade util from 0.12.1 to 0.12.2 (#64)

Snyk has created this PR to upgrade util from 0.12.1 to 0.12.2.

See this package in NPM:
https://www.npmjs.com/package/util

See this project in Snyk:
https://app.snyk.io/org/iansan5653/project/efa88ed6-7a11-44d2-a797-728e3c3827ad?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -60,7 +60,7 @@
     "child_process": "^1.0.2",
     "compress-tag": "^1.2.2",
     "diff": "^4.0.1",
-    "util": "^0.12.1"
+    "util": "^0.12.2"
   },
   "keywords": [
     "python",