deps: update dependency com.google.cloud:google-cloud-shared-dependencies to v0.16.1 (#372)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud:google-cloud-shared-dependencies](https://togithub.com/googleapis/java-shared-dependencies) | patch | `0.16.0` -> `0.16.1` |

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### Release Notes

<details>
<summary>googleapis/java-shared-dependencies</summary>

### [`v0.16.1`](https://togithub.com/googleapis/java-shared-dependencies/blob/master/CHANGELOG.md#&#8203;0161-httpswwwgithubcomgoogleapisjava-shared-dependenciescompare0160v0161-2020-12-14)

[Compare Source](https://togithub.com/googleapis/java-shared-dependencies/compare/v0.16.0...v0.16.1)

</details>

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Author: renovate-bot

pom.xml

@@ -86,7 +86,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>0.16.0</version>
+        <version>0.16.1</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>