chore: release 2.4.3 (#520)

🤖 I have created a release \*beep\* \*boop\*
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### [2.4.3](https://www.github.com/googleapis/nodejs-automl/compare/v2.4.2...v2.4.3) (2021-07-21)


### Bug Fixes

* **deps:** google-gax v2.17.1 ([#526](https://www.github.com/googleapis/nodejs-automl/issues/526)) ([8911d45](https://www.github.com/googleapis/nodejs-automl/commit/8911d457513f2c0c9cca6d2b7473b314ac3a4efd))
* **deps:** require google-gax v2.17.0 ([#524](https://www.github.com/googleapis/nodejs-automl/issues/524)) ([5863c54](https://www.github.com/googleapis/nodejs-automl/commit/5863c5440bf94fa2fd986b5c8f5265b86fd4497e))
* make request optional in all cases ([#521](https://www.github.com/googleapis/nodejs-automl/issues/521)) ([a45622a](https://www.github.com/googleapis/nodejs-automl/commit/a45622a9f53683a73fd2057ef5a2ccf22e7da946))
* REST fallback client header ([#513](https://www.github.com/googleapis/nodejs-automl/issues/513)) ([833d2d7](https://www.github.com/googleapis/nodejs-automl/commit/833d2d70ff1828a69e7f9482f58189f5d484751f))
* Updating WORKSPACE files to use the newest version of the Typescript generator. ([#527](https://www.github.com/googleapis/nodejs-automl/issues/527)) ([dfb504e](https://www.github.com/googleapis/nodejs-automl/commit/dfb504e12075136707e5915b1db6f65ed72d5aa9))
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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]

automl/package.json

@@ -16,7 +16,7 @@
     "!test/"
   ],
   "dependencies": {
-    "@google-cloud/automl": "^2.4.2",
+    "@google-cloud/automl": "^2.4.3",
     "csv": "^5.1.3",
     "mathjs": "^9.0.0",
     "yargs": "^16.0.0"