chore: release 4.1.0 (#826)

🤖 I have created a release \*beep\* \*boop\*
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## [4.1.0](https://www.github.com/googleapis/nodejs-dialogflow/compare/v4.0.0...v4.1.0) (2021-06-15)


### Features

* added Automated agent reply type and allow cancellation flag for partial response feature ([#825](https://www.github.com/googleapis/nodejs-dialogflow/issues/825)) ([5b128d9](https://www.github.com/googleapis/nodejs-dialogflow/commit/5b128d97eeb63e7d7666e800e5a62789f6f56a65))
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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/package.json

@@ -15,7 +15,7 @@
     "test": "mocha system-test --timeout=600000"
   },
   "dependencies": {
-    "@google-cloud/dialogflow": "^4.0.0",
+    "@google-cloud/dialogflow": "^4.1.0",
     "pb-util": "^1.0.0",
     "uuid": "^8.0.0",
     "yargs": "^16.0.0"