chore: release 1.3.1 (#41)

🤖 I have created a release \*beep\* \*boop\* 
---
### [1.3.1](https://www.github.com/googleapis/python-pubsub/compare/v1.3.0...v1.3.1) (2020-02-28)


### Bug Fixes

* shutdown error on streaming pull callback error ([#40](https://www.github.com/googleapis/python-pubsub/issues/40)) ([552539e](https://www.github.com/googleapis/python-pubsub/commit/552539e7beb30833c39dd29bfcb0183a07895f97))
---


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

Author: release-please[bot]

CHANGELOG.md

@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-pubsub/#history
 
+### [1.3.1](https://www.github.com/googleapis/python-pubsub/compare/v1.3.0...v1.3.1) (2020-02-28)
+
+
+### Bug Fixes
+
+* shutdown error on streaming pull callback error ([#40](https://www.github.com/googleapis/python-pubsub/issues/40)) ([552539e](https://www.github.com/googleapis/python-pubsub/commit/552539e7beb30833c39dd29bfcb0183a07895f97))
+
 ## [1.3.0](https://www.github.com/googleapis/python-pubsub/compare/v1.2.0...v1.3.0) (2020-02-20)
 
 

setup.py

@@ -22,7 +22,7 @@
 
 name = "google-cloud-pubsub"
 description = "Google Cloud Pub/Sub API client library"
-version = "1.3.0"
+version = "1.3.1"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'