chore: release 2.9.1 (#412)

🤖 I have created a release \*beep\* \*boop\*
---
### [2.9.1](https://www.github.com/googleapis/python-dialogflow/compare/v2.9.0...v2.9.1) (2021-10-04)


### Documentation

* **samples:** adds training phrases sample ([#404](https://www.github.com/googleapis/python-dialogflow/issues/404)) ([9d98f9b](https://www.github.com/googleapis/python-dialogflow/commit/9d98f9b47208cbbdee13f678000c2970387c716e))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

CHANGELOG.md

@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/dialogflow/#history
 
+### [2.9.1](https://www.github.com/googleapis/python-dialogflow/compare/v2.9.0...v2.9.1) (2021-10-04)
+
+
+### Documentation
+
+* **samples:** adds training phrases sample ([#404](https://www.github.com/googleapis/python-dialogflow/issues/404)) ([9d98f9b](https://www.github.com/googleapis/python-dialogflow/commit/9d98f9b47208cbbdee13f678000c2970387c716e))
+
 ## [2.9.0](https://www.github.com/googleapis/python-dialogflow/compare/v2.8.1...v2.9.0) (2021-09-30)
 
 

setup.py

@@ -19,7 +19,7 @@
 
 name = "dialogflow"
 description = "Client library for the Dialogflow API"
-version = "2.9.0"
+version = "2.9.1"
 release_status = "Development Status :: 5 - Production/Stable"
 dependencies = [
     # NOTE: Maintainers, please do not require google-api-core>=2.x.x