chore: release 2.4.2 (#502)

🤖 I have created a release \*beep\* \*boop\*
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### [2.4.2](https://www.github.com/googleapis/nodejs-automl/compare/v2.4.1...v2.4.2) (2021-05-12)


### Bug Fixes

* **deps:** require google-gax v2.12.0 ([#501](https://www.github.com/googleapis/nodejs-automl/issues/501)) ([f88cc91](https://www.github.com/googleapis/nodejs-automl/commit/f88cc915df6ac67f7dc46fa345d9fc481b12d7da))
* use require() to load JSON protos ([#504](https://www.github.com/googleapis/nodejs-automl/issues/504)) ([4cd9585](https://www.github.com/googleapis/nodejs-automl/commit/4cd9585da11b3a9189ed8f3f0e5ddc76c578a462))
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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": "^2.4.1",
+    "@google-cloud/automl": "^2.4.2",
     "csv": "^5.1.3",
     "mathjs": "^9.0.0",
     "yargs": "^16.0.0"