chore: release 2.3.1 (#163)

🤖 I have created a release \*beep\* \*boop\*
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### [2.3.1](https://www.github.com/googleapis/nodejs-media-translation/compare/v2.3.0...v2.3.1) (2021-06-30)


### Bug Fixes

* **deps:** google-gax v2.17.0 with mTLS ([#161](https://www.github.com/googleapis/nodejs-media-translation/issues/161)) ([bbd1415](https://www.github.com/googleapis/nodejs-media-translation/commit/bbd141565364bc0bbb15f1240d98683033da3001))
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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).

Author: release-please[bot]

media-translation/package.json

@@ -13,7 +13,7 @@
     "test": "c8 mocha --timeout 600000 test/*.js"
   },
   "dependencies": {
-    "@google-cloud/media-translation": "^2.3.0",
+    "@google-cloud/media-translation": "^2.3.1",
     "node-record-lpcm16": "1.0.1"
   },
   "devDependencies": {