chore(deps): update dependency google-cloud-storage to v1.42.0 (#215)

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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) | `==1.41.1` -> `==1.42.0` | [![age](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.42.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.42.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.42.0/compatibility-slim/1.41.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/1.42.0/confidence-slim/1.41.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.42.0`](https://togithub.com/googleapis/python-storage/blob/master/CHANGELOG.md#&#8203;1420-httpswwwgithubcomgoogleapispython-storagecomparev1411v1420-2021-08-05)

[Compare Source](https://togithub.com/googleapis/python-storage/compare/v1.41.1...v1.42.0)

##### Features

-   add 'page_size' parameter to 'Bucket.list_blobs, list_buckets ([#&#8203;520](https://www.togithub.com/googleapis/python-storage/issues/520)) ([c5f4ad8](https://www.github.com/googleapis/python-storage/commit/c5f4ad8fddd1849a4229b0126c4c022bccb90128))

##### Bug Fixes

-   **deps:** add explicit ranges for 'google-api-core' and 'google-auth' ([#&#8203;530](https://www.togithub.com/googleapis/python-storage/issues/530)) ([310f207](https://www.github.com/googleapis/python-storage/commit/310f207411da0382af310172344f19c644c14e6a))
-   downloading no longer marks metadata fields as 'changed' ([#&#8203;523](https://www.togithub.com/googleapis/python-storage/issues/523)) ([160d1ec](https://www.github.com/googleapis/python-storage/commit/160d1ecb41f1f269b25cb68b2d2f7daf418bf01c))
-   make 'requests.exceptions.ChunkedEncodingError retryable by default ([#&#8203;526](https://www.togithub.com/googleapis/python-storage/issues/526)) ([4abb403](https://www.github.com/googleapis/python-storage/commit/4abb40310eca7ec45afc4bc5e4dfafbe083e74d2))

##### Documentation

-   update supported / removed Python versions in README ([#&#8203;519](https://www.togithub.com/googleapis/python-storage/issues/519)) ([1f1b138](https://www.github.com/googleapis/python-storage/commit/1f1b138865fb171535ee0cf768aff1987ed58914))

##### [1.41.1](https://www.github.com/googleapis/python-storage/compare/v1.41.0...v1.41.1) (2021-07-20)

##### Bug Fixes

-   **deps:** pin `{api,cloud}-core`, `auth` to allow 2.x versions on Python 3 ([#&#8203;512](https://www.togithub.com/googleapis/python-storage/issues/512)) ([4d7500e](https://www.github.com/googleapis/python-storage/commit/4d7500e39c51efd817b8363b69c88be040f3edb8))
-   remove trailing commas from error message constants ([#&#8203;505](https://www.togithub.com/googleapis/python-storage/issues/505)) ([d4a86ce](https://www.github.com/googleapis/python-storage/commit/d4a86ceb7a7c5e00ba7bae37c7078d52478040ff)), closes [#&#8203;501](https://www.togithub.com/googleapis/python-storage/issues/501)

##### Documentation

-   replace usage of deprecated function `download_as_string` in docs ([#&#8203;508](https://www.togithub.com/googleapis/python-storage/issues/508)) ([8dfa4d4](https://www.github.com/googleapis/python-storage/commit/8dfa4d429dce94b671dc3e3755e52ab82733f61a))

</details>

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vision/snippets/detect/requirements.txt

@@ -1,2 +1,2 @@
 google-cloud-vision==2.4.2
-google-cloud-storage==1.41.1
+google-cloud-storage==1.42.0

vision/snippets/product_search/requirements.txt

@@ -1,2 +1,2 @@
 google-cloud-vision==2.4.2
-google-cloud-storage==1.41.1
+google-cloud-storage==1.42.0