chore: release 0.45.1 (#860)

🤖 I have created a release \*beep\* \*boop\*
---
### [0.45.1](https://www.github.com/googleapis/gapic-generator-python/compare/v0.45.0...v0.45.1) (2021-05-04)


### Bug Fixes

* add async client to %name_%version/__init__.py ([#859](https://www.github.com/googleapis/gapic-generator-python/issues/859)) ([391fdb8](https://www.github.com/googleapis/gapic-generator-python/commit/391fdb84b13c5628c21d81ad311c689da8971f6a))
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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/gapic-generator/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+### [0.45.1](https://www.github.com/googleapis/gapic-generator-python/compare/v0.45.0...v0.45.1) (2021-05-04)
+
+
+### Bug Fixes
+
+* add async client to %name_%version/__init__.py ([#859](https://www.github.com/googleapis/gapic-generator-python/issues/859)) ([391fdb8](https://www.github.com/googleapis/gapic-generator-python/commit/391fdb84b13c5628c21d81ad311c689da8971f6a))
+
 ## [0.45.0](https://www.github.com/googleapis/gapic-generator-python/compare/v0.44.3...v0.45.0) (2021-05-03)