chore(deps): update dependency google-cloud-service-directory to v1.2.0 (GoogleCloudPlatform#6959)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [google-cloud-service-directory](https://togithub.com/googleapis/python-service-directory) | `==1.1.0` -> `==1.2.0` | [![age](https://badges.renovateapi.com/packages/pypi/google-cloud-service-directory/1.2.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/google-cloud-service-directory/1.2.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/google-cloud-service-directory/1.2.0/compatibility-slim/1.1.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/google-cloud-service-directory/1.2.0/confidence-slim/1.1.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/python-service-directory</summary>

### [`v1.2.0`](https://togithub.com/googleapis/python-service-directory/blob/master/CHANGELOG.md#&#8203;120-httpswwwgithubcomgoogleapispython-service-directorycomparev110v120-2021-10-20)

[Compare Source](https://togithub.com/googleapis/python-service-directory/compare/v1.1.0...v1.2.0)

##### Features

-   add support for python 3.10 ([#&GoogleCloudPlatform#8203;126](https://www.togithub.com/googleapis/python-service-directory/issues/126)) ([3d3847c](https://www.github.com/googleapis/python-service-directory/commit/3d3847cd14542934a4b992ab789bbc5f1bffe2ef))

##### Documentation

-   fix docstring formatting ([#&GoogleCloudPlatform#8203;130](https://www.togithub.com/googleapis/python-service-directory/issues/130)) ([a440a30](https://www.github.com/googleapis/python-service-directory/commit/a440a307044cb58c301111df7491ce59778abaac))

</details>

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Author: renovate-bot

servicedirectory/requirements.txt

@@ -1 +1 @@
-google-cloud-service-directory==1.1.0
+google-cloud-service-directory==1.2.0