deps: update dependency com.google.cloud:google-cloud-storage to v2.6.0 (#840)

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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) | `2.5.1` -> `2.6.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.6.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.6.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.6.0/compatibility-slim/2.5.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.6.0/confidence-slim/2.5.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.6.0`](https://togithub.com/googleapis/java-storage/blob/HEAD/CHANGELOG.md#&#8203;260-httpsgithubcomgoogleapisjava-storagecomparev251v260-2022-03-30)

[Compare Source](https://togithub.com/googleapis/java-storage/compare/v2.5.1...v2.6.0)

##### Features

-   replace enum with string representation for predefined ACLs and public_access_prevention ([#&#8203;1323](https://togithub.com/googleapis/java-storage/issues/1323)) ([4dd1a88](https://togithub.com/googleapis/java-storage/commit/4dd1a8800317343bb0cd575864683e580f9ccd29))

##### Bug Fixes

-   **java:** add configurations for Storage tests ([#&#8203;1305](https://togithub.com/googleapis/java-storage/issues/1305)) ([2bacf92](https://togithub.com/googleapis/java-storage/commit/2bacf92799e8a0fbdc1b5cfcfc6ef8d806a53fa3))
-   update boundary checking of BlobReadChannel when limit() is used ([#&#8203;1324](https://togithub.com/googleapis/java-storage/issues/1324)) ([f21f624](https://togithub.com/googleapis/java-storage/commit/f21f624f1645b5ada350c04c774f9f113e76e971))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.9.0 ([#&#8203;1321](https://togithub.com/googleapis/java-storage/issues/1321)) ([f48d8dd](https://togithub.com/googleapis/java-storage/commit/f48d8dd09e918ba4a54fccaebf65feaba4f6e206))

##### Documentation

-   adjust retry settings for hmac samples ([#&#8203;1303](https://togithub.com/googleapis/java-storage/issues/1303)) ([d0c5361](https://togithub.com/googleapis/java-storage/commit/d0c5361e9e4996f8a99754381e5a28a843e6de2a))

##### [2.5.1](https://togithub.com/googleapis/java-storage/compare/v2.5.0...v2.5.1) (2022-03-28)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-pubsub to v1.116.2 ([#&#8203;1310](https://togithub.com/googleapis/java-storage/issues/1310)) ([fb64493](https://togithub.com/googleapis/java-storage/commit/fb644932d4350b4e33481abda8cc8f498f9da85e))

</details>

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Author: renovate-bot

aiplatform/snippets/pom.xml

@@ -33,7 +33,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-storage</artifactId>
-      <version>2.5.1</version>
+      <version>2.6.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.protobuf</groupId>