chore: release 2.2.1 (#448)

🤖 I have created a release \*beep\* \*boop\* 
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### [2.2.1](https://www.github.com/googleapis/nodejs-dataproc/compare/v2.2.0...v2.2.1) (2021-01-09)


### Bug Fixes

* **browser:** check for fetch on window ([64fd55c](https://www.github.com/googleapis/nodejs-dataproc/commit/64fd55c3d42281f01dbabab5d823039dc5a26416))
* do not modify options object, use defaultScopes ([#445](https://www.github.com/googleapis/nodejs-dataproc/issues/445)) ([c89bc66](https://www.github.com/googleapis/nodejs-dataproc/commit/c89bc662bd8387c82581a02026be5a6d6a40f5af))
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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": "^2.2.0",
+    "@google-cloud/dataproc": "^2.2.1",
     "@google-cloud/storage": "^5.0.0"
   },
   "devDependencies": {