fix(deps): update dependency pify to v6

Author: renovate[bot]

package-lock.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "ajv": "^6.3.0",
     "jszip": "^3.1.5",
-    "pify": "^4.0.1"
+    "pify": "^6.0.0"
   },
   "devDependencies": {
     "@commitlint/cli": "7.2.1",