chore(deps): update dependency @google-cloud/nodejs-repo-tools to v3 (#200)

Author: renovate[bot]

handwritten/logging-bunyan/package.json

@@ -59,7 +59,7 @@
     "@google-cloud/logging": "^4.1.0"
   },
   "devDependencies": {
-    "@google-cloud/nodejs-repo-tools": "^2.3.0",
+    "@google-cloud/nodejs-repo-tools": "^3.0.0",
     "@types/bunyan": "^1.8.4",
     "@types/express": "^4.16.0",
     "@types/mocha": "^5.2.3",

handwritten/logging-bunyan/samples/package.json

@@ -20,7 +20,7 @@
   },
   "devDependencies": {
     "@google-cloud/logging": "^4.0.0",
-    "@google-cloud/nodejs-repo-tools": "^2.3.0",
+    "@google-cloud/nodejs-repo-tools": "^3.0.0",
     "ava": "^0.25.0",
     "delay": "^4.0.0",
     "execa": "^1.0.0",