fix(deps): update dependency @google-cloud/promisify to v1 (#415)

renovate[bot] · JustinBeckwith · commit 00c422a30fe3 · 2019-05-03T07:29:39.000-07:00
diff --git a/package.json b/package.json
@@ -32,7 +32,7 @@
   },
   "dependencies": {
     "@google-cloud/projectify": "^0.3.3",
-    "@google-cloud/promisify": "^0.4.0",
+    "@google-cloud/promisify": "^1.0.0",
     "@types/request": "^2.48.1",
     "arrify": "^2.0.0",
     "duplexify": "^3.6.0",
