chore: release 2.2.0 (#75)

🤖 I have created a release \*beep\* \*boop\* 
---
## [2.2.0](https://www.github.com/googleapis/python-texttospeech/compare/v2.1.0...v2.2.0) (2020-08-10)


### Features

* incorporate upstream changes ([#73](https://www.github.com/googleapis/python-texttospeech/issues/73)) ([8ee5447](https://www.github.com/googleapis/python-texttospeech/commit/8ee544740f18497d9925bcf77e5ab96695503589))

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

CHANGELOG.md

@@ -4,6 +4,17 @@
 
 [1]: https://pypi.org/project/google-cloud-texttospeech/#history
 
+## [2.2.0](https://www.github.com/googleapis/python-texttospeech/compare/v2.1.0...v2.2.0) (2020-08-10)
+
+
+### Features
+
+* incorporate upstream changes ([#73](https://www.github.com/googleapis/python-texttospeech/issues/73)) ([8ee5447](https://www.github.com/googleapis/python-texttospeech/commit/8ee544740f18497d9925bcf77e5ab96695503589))
+    * support MULAW audio encoding
+    * support MP3_64_KBPS audio encoding
+    * support timepointing via SSML tag
+    * support quota_project_id
+
 ## [2.1.0](https://www.github.com/googleapis/python-texttospeech/compare/v2.0.0...v2.1.0) (2020-06-20)
 
 

setup.py

@@ -35,7 +35,7 @@
 
 name = "google-cloud-texttospeech"
 description = "Google Cloud Text-to-Speech API client library"
-version = "2.1.0"
+version = "2.2.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'