deps: update dependency com.google.cloud:google-cloud-storage to v2.1.9 (#743)

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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) | `2.1.7` -> `2.1.9` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.9/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.9/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.9/compatibility-slim/2.1.7)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-storage/2.1.9/confidence-slim/2.1.7)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.1.9`](https://togithub.com/googleapis/java-storage/blob/master/CHANGELOG.md#&#8203;219-httpswwwgithubcomgoogleapisjava-storagecomparev218v219-2021-10-19)

[Compare Source](https://togithub.com/googleapis/java-storage/compare/v2.1.8...v2.1.9)

### [`v2.1.8`](https://togithub.com/googleapis/java-storage/blob/master/CHANGELOG.md#&#8203;218-httpswwwgithubcomgoogleapisjava-storagecomparev217v218-2021-10-18)

[Compare Source](https://togithub.com/googleapis/java-storage/compare/v2.1.7...v2.1.8)

</details>

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Author: renovate-bot

pom.xml

@@ -78,7 +78,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-storage</artifactId>
-        <version>2.1.7</version>
+        <version>2.1.9</version>
       </dependency>
       <dependency>
         <groupId>com.google.apis</groupId>