chore(main): release 3.0.0 (#645)

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

Author: release-please[bot]

error-reporting/package.json

@@ -15,7 +15,7 @@
     "test": "mocha --timeout=600000"
   },
   "dependencies": {
-    "@google-cloud/error-reporting": "^2.0.5",
+    "@google-cloud/error-reporting": "^3.0.0",
     "express": "^4.16.3"
   },
   "devDependencies": {