deps: update dependency com.google.cloud:google-cloud-shared-dependen…

…cies to v3.9.0 (#2108)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-shared-dependencies](https://togithub.com/googleapis/gapic-generator-java) | `3.8.0` -> `3.9.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/3.9.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/3.9.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/3.9.0/compatibility-slim/3.8.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-shared-dependencies/3.9.0/confidence-slim/3.8.0)](https://docs.renovatebot.com/merge-confidence/) |

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pom.xml

@@ -76,7 +76,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>3.8.0</version>
+        <version>3.9.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>