chore(deps): update dependency com.google.cloud.samples:shared-config…

…uration to v1.2.0 (#321)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud.samples:shared-configuration](https://github.com/GoogleCloudPlatform/java-repo-tools) | `1.0.23` -> `1.2.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud.samples:shared-configuration/1.2.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud.samples:shared-configuration/1.2.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud.samples:shared-configuration/1.2.0/compatibility-slim/1.0.23)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud.samples:shared-configuration/1.2.0/confidence-slim/1.0.23)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>GoogleCloudPlatform/java-repo-tools</summary>

### [`v1.2.0`](https://github.com/GoogleCloudPlatform/java-repo-tools/compare/v1.0.24...v1.2.0)

[Compare Source](https://github.com/GoogleCloudPlatform/java-repo-tools/compare/v1.0.24...v1.2.0)

### [`v1.0.24`](https://github.com/GoogleCloudPlatform/java-repo-tools/compare/v1.0.23...v1.0.24)

[Compare Source](https://github.com/GoogleCloudPlatform/java-repo-tools/compare/v1.0.23...v1.0.24)

</details>

---

### Configuration

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🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

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 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

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privateca/pom.xml

@@ -26,7 +26,7 @@
   <parent>
     <groupId>com.google.cloud.samples</groupId>
     <artifactId>shared-configuration</artifactId>
-    <version>1.0.23</version>
+    <version>1.2.0</version>
   </parent>
 
   <properties>