deps: update dependency com.google.cloud:google-cloud-artifact-regist…

…ry-bom to v1.2.9 (#5348)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-artifact-registry-bom](https://togithub.com/googleapis/java-artifact-registry) | `1.2.7` -> `1.2.9` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-artifact-registry-bom/1.2.9/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-artifact-registry-bom/1.2.9/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-artifact-registry-bom/1.2.9/compatibility-slim/1.2.7)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-artifact-registry-bom/1.2.9/confidence-slim/1.2.7)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-artifact-registry</summary>

### [`v1.2.9`](https://togithub.com/googleapis/java-artifact-registry/blob/HEAD/CHANGELOG.md#&#8203;129-httpsgithubcomgoogleapisjava-artifact-registrycomparev128v129-2022-10-04)

[Compare Source](https://togithub.com/googleapis/java-artifact-registry/compare/v1.2.7...v1.2.9)

##### Bug Fixes

-   update protobuf to v3.21.7 ([d88f516](https://togithub.com/googleapis/java-artifact-registry/commit/d88f5168d8961316242c147cb42e6b7d1419052e))

##### Dependencies

-   Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.0.4 ([#&#8203;341](https://togithub.com/googleapis/java-artifact-registry/issues/341)) ([7d9a4ed](https://togithub.com/googleapis/java-artifact-registry/commit/7d9a4edaefe2dc263b916827aa63c6a8d5ee8e92))

</details>

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google-cloud-bom/pom.xml

@@ -193,7 +193,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-artifact-registry-bom</artifactId>
-        <version>1.2.7</version>
+        <version>1.2.9</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>