chore: release 2.12.1 (#149)

🤖 I have created a release \*beep\* \*boop\*
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### [2.12.1](https://www.github.com/googleapis/nodejs-dialogflow-cx/compare/v2.12.0...v2.12.1) (2021-07-21)


### Bug Fixes

* **deps:** google-gax v2.17.1 ([#148](https://www.github.com/googleapis/nodejs-dialogflow-cx/issues/148)) ([5e1ec0a](https://www.github.com/googleapis/nodejs-dialogflow-cx/commit/5e1ec0a77db21c219531800d2c54c5edd4f54fba))
* Updating WORKSPACE files to use the newest version of the Typescript generator. ([#150](https://www.github.com/googleapis/nodejs-dialogflow-cx/issues/150)) ([8974183](https://www.github.com/googleapis/nodejs-dialogflow-cx/commit/8974183edd156e9adb9e9d11557931bda03c1d3c))
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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).

dialogflow-cx/package.json

@@ -13,7 +13,7 @@
     "test": "c8 mocha --timeout 600000 test/*.js"
   },
   "dependencies": {
-    "@google-cloud/dialogflow-cx": "^2.12.0",
+    "@google-cloud/dialogflow-cx": "^2.12.1",
     "uuid": "^8.3.1"
   },
   "devDependencies": {