chore(deps): update dependency google-cloud-storage to v1.37.1 (#114)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [google-cloud-storage](https://togithub.com/googleapis/python-storage) | `==1.37.0` -> `==1.37.1` | [![age](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.37.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.37.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.37.1/compatibility-slim/1.37.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.37.1/confidence-slim/1.37.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/python-storage</summary>

### [`v1.37.1`](https://togithub.com/googleapis/python-storage/blob/master/CHANGELOG.md#&#8203;1371-httpswwwgithubcomgoogleapispython-storagecomparev1370v1371-2021-04-02)

[Compare Source](https://togithub.com/googleapis/python-storage/compare/v1.37.0...v1.37.1)

</details>

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documentai/snippets/requirements.txt

@@ -1,2 +1,2 @@
 google-cloud-documentai==0.4.0
-google-cloud-storage==1.37.0
+google-cloud-storage==1.37.1