Update dependency google-api-python-client to v1.9.3 [(#4057)](Google…

…CloudPlatform/python-docs-samples#4057)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [google-api-python-client](https://togithub.com/googleapis/google-api-python-client) | patch | `==1.9.2` -> `==1.9.3` |

---

### Release Notes

<details>
<summary>googleapis/google-api-python-client</summary>

### [`v1.9.3`](https://togithub.com/googleapis/google-api-python-client/blob/master/CHANGELOG.md#&#8203;193-httpswwwgithubcomgoogleapisgoogle-api-python-clientcomparev192v193-2020-06-10)

[Compare Source](https://togithub.com/googleapis/google-api-python-client/compare/v1.9.2...v1.9.3)

</details>

---

### Renovate configuration

:date: **Schedule**: At any time (no schedule defined).

:vertical_traffic_light: **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

:recycle: **Rebasing**: Never, or you tick the rebase/retry checkbox.

:no_bell: **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [WhiteSource Renovate](https://renovate.whitesourcesoftware.com). View repository job log [here](https://app.renovatebot.com/dashboard#GoogleCloudPlatform/python-docs-samples).

samples/snippets/v3/api-client/requirements.txt

@@ -1,3 +1,3 @@
-google-api-python-client==1.9.2
+google-api-python-client==1.9.3
 google-auth==1.17.2
 google-auth-httplib2==0.0.3