build(deps-dev): Bump pkg from 4.3.8 to 4.4.0 (#142)

Bumps [pkg](https://github.com/zeit/pkg) from 4.3.8 to 4.4.0.
- [Release notes](https://github.com/zeit/pkg/releases)
- [Commits](vercel/pkg@4.3.8...4.4.0)

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

package.json

@@ -79,7 +79,7 @@
     "grunt": "^1.0.4",
     "innosetup-compiler": "^5.5.62",
     "mocha": "^6.1.4",
-    "pkg": "^4.3.8",
+    "pkg": "^4.4.0",
     "standard-version": "^6.0.1"
   },
   "config": {