chore(package): update make-promises-safe to version 4.0.0 (#29)

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
     "got": "^9.0.0",
     "http-errors": "^1.6.3",
     "http-proxy": "^1.17.0",
-    "make-promises-safe": "^3.0.0",
+    "make-promises-safe": "^4.0.0",
     "pre-commit": "^1.2.2",
     "simple-get": "^3.0.0",
     "snazzy": "^8.0.0",