chore: release 0.35.8 (#681)

🤖 I have created a release \*beep\* \*boop\* 
---
### [0.35.8](https://www.github.com/googleapis/gapic-generator-python/compare/v0.35.7...v0.35.8) (2020-10-21)


### Documentation

* generated message types reference proto-plus ([#680](https://www.github.com/googleapis/gapic-generator-python/issues/680)) ([23327b2](https://www.github.com/googleapis/gapic-generator-python/commit/23327b275fb5a3fefe6c47cb15b9d9ecb02aac1f))
---


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

Author: release-please[bot]

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+### [0.35.8](https://www.github.com/googleapis/gapic-generator-python/compare/v0.35.7...v0.35.8) (2020-10-21)
+
+
+### Documentation
+
+* generated message types reference proto-plus ([#680](https://www.github.com/googleapis/gapic-generator-python/issues/680)) ([23327b2](https://www.github.com/googleapis/gapic-generator-python/commit/23327b275fb5a3fefe6c47cb15b9d9ecb02aac1f))
+
 ### [0.35.7](https://www.github.com/googleapis/gapic-generator-python/compare/v0.35.6...v0.35.7) (2020-10-21)
 
 

setup.py

@@ -20,7 +20,7 @@
 
 PACKAGE_ROOT = os.path.abspath(os.path.dirname(__file__))
 
-version = "0.35.7"
+version = "0.35.8"
 
 with io.open(os.path.join(PACKAGE_ROOT, "README.rst")) as file_obj:
     README = file_obj.read()