chore: release 1.13.1 (#184)

🤖 I have created a release \*beep\* \*boop\* 
---
### [1.13.1](https://www.github.com/googleapis/proto-plus-python/compare/v1.13.0...v1.13.1) (2021-02-09)


### Bug Fixes

* update docstring to match type hint ([#172](https://www.github.com/googleapis/proto-plus-python/issues/172)) ([14dad5b](https://www.github.com/googleapis/proto-plus-python/commit/14dad5bf6c5967a720e9d3095d621dbfe208b614))
---


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

Author: release-please[bot]

packages/proto-plus/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+### [1.13.1](https://www.github.com/googleapis/proto-plus-python/compare/v1.13.0...v1.13.1) (2021-02-09)
+
+
+### Bug Fixes
+
+* update docstring to match type hint ([#172](https://www.github.com/googleapis/proto-plus-python/issues/172)) ([14dad5b](https://www.github.com/googleapis/proto-plus-python/commit/14dad5bf6c5967a720e9d3095d621dbfe208b614))
+
 ## [1.13.0](https://www.github.com/googleapis/proto-plus-python/compare/v1.12.0...v1.13.0) (2020-12-04)
 
 

packages/proto-plus/setup.py

@@ -17,7 +17,7 @@
 
 from setuptools import find_packages, setup
 
-version = "1.13.0"
+version = "1.13.1"
 
 PACKAGE_ROOT = os.path.abspath(os.path.dirname(__file__))