deps: update dependency com.google.cloud:google-cloud-storage to v2.1…

….6 (#683)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-storage](https://togithub.com/googleapis/java-storage) | `2.1.5` -> `2.1.6` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.6/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.6/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.6/compatibility-slim/2.1.5)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.6/confidence-slim/2.1.5)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.1.6`](https://togithub.com/googleapis/java-storage/blob/master/CHANGELOG.md#&#8203;216-httpswwwgithubcomgoogleapisjava-storagecomparev215v216-2021-09-24)

[Compare Source](https://togithub.com/googleapis/java-storage/compare/v2.1.5...v2.1.6)

</details>

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aiplatform/snippets/pom.xml

@@ -33,7 +33,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.1.5</version>
+      <version>2.1.6</version>
     </dependency>
     <dependency>
       <groupId>com.google.protobuf</groupId>