fix(deps): update dependency @google-cloud/common to v3 (#1134)

Author: renovate-bot

package.json

@@ -49,7 +49,7 @@
  "prelint": "cd samples; npm link ../; npm i"
  },
  "dependencies": {
- "@google-cloud/common": "^2.1.1",
+ "@google-cloud/common": "^3.0.0",
  "@google-cloud/paginator": "^2.0.0",
  "@google-cloud/promisify": "^1.0.0",
  "arrify": "^2.0.0",