This PR migrates from autosynth to [owl bot](https://github.com/googleapis/repo-automation-bots/tree/master/packages/owl-bot).  owl bot will save time for maintainers as it will automatically open PRs when there are updates in [googleapis-gen](https://github.com/googleapis/googleapis-gen/tree/master/google) without requiring maintainers to run `synthtool` to build the client from protos. Additionally, similar to autosynth, PRs will be automatically opened when there are template updates.

gcr.io/repo-automation-bots/owlbot-python:latest@sha256:4c981a6b6f2b8914a448d7b3a01688365be03e3ed26dfee399a6aa77fb112eaa

gcr.io/repo-automation-bots/owlbot-python:latest@sha256:3c3a445b3ddc99ccd5d31edc4b4519729635d20693900db32c4f587ed51f7479

gcr.io/repo-automation-bots/owlbot-python:latest@sha256:0856ca711da1fd5ec9d6d7da6c50aa0bbf550fb94acb47b55159a640791987bf

Post-Processor: gcr.io/repo-automation-bots/owlbot-python:latest@sha256:c66ba3c8d7bc8566f47df841f98cd0097b28fff0b1864c86f5817f4c8c3e8600

There is [an issue](https://github.com/googleapis/python-workflows/blob/master/owlbot.py#L46) in the `owlbot.py` file added in #50 in that [s.remove_staging_dirs()](https://github.com/googleapis/synthtool/blob/master/synthtool/transforms.py#L309) should only be called once after all the files are copied over.  [get_staging_dirs()](https://github.com/googleapis/synthtool/blob/master/synthtool/transforms.py#L280) will only return staging directories that exist.

Fixes #46  🦕

Release-As: 1.0.0

🤖 I have created a release \*beep\* \*boop\*
---
## [1.0.0](https://www.github.com/googleapis/python-workflows/compare/v0.3.0...v1.0.0) (2021-06-02)


### Features

* bump release level to production/stable ([#54](https://www.github.com/googleapis/python-workflows/issues/54)) ([3cd61a5](https://www.github.com/googleapis/python-workflows/commit/3cd61a5670707e56a67749a31805e091e0ab87b2))
---


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