deps: fix CI by setting @google-cloud/promisify version (#961)

Author: aabmass

handwritten/cloud-profiler/package.json

@@ -29,6 +29,7 @@
   "dependencies": {
     "@google-cloud/common": "^5.0.0",
     "@google-cloud/logging-min": "^11.0.0",
+    "@google-cloud/promisify": "~4.0.0",
     "@types/console-log-level": "^1.4.0",
     "@types/semver": "^7.0.0",
     "console-log-level": "^1.4.0",