chore: release 2.4.0 (#482)

🤖 I have created a release \*beep\* \*boop\*
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## [2.4.0](https://www.github.com/googleapis/nodejs-dataproc/compare/v2.3.0...v2.4.0) (2021-04-26)


### Features

* a bundle of new features for Dataproc V1 ([#475](https://www.github.com/googleapis/nodejs-dataproc/issues/475)) ([4803be4](https://www.github.com/googleapis/nodejs-dataproc/commit/4803be4f4b63833072aa50e29e8b081c363f6dde))
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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": "^2.3.0",
+    "@google-cloud/dataproc": "^2.4.0",
     "@google-cloud/storage": "^5.0.0"
   },
   "devDependencies": {