chore: release 3.1.0 (#544)

🤖 I have created a release \*beep\* \*boop\*
---
## [3.1.0](https://www.github.com/googleapis/nodejs-dataproc/compare/v3.0.0...v3.1.0) (2021-10-13)


### Features

* add Dataproc Serverless for Spark Batches API ([#543](https://www.github.com/googleapis/nodejs-dataproc/issues/543)) ([012b56f](https://www.github.com/googleapis/nodejs-dataproc/commit/012b56fd656b22fe555c9edafbfb9a8f20c91358))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

dataproc/package.json

@@ -14,7 +14,7 @@
     "test": "mocha system-test --timeout 600000"
   },
   "dependencies": {
-    "@google-cloud/dataproc": "^3.0.0",
+    "@google-cloud/dataproc": "^3.1.0",
     "@google-cloud/storage": "^5.0.0"
   },
   "devDependencies": {