deps: update dependency com.google.cloud:google-cloud-document-ai-bom…

… to v2.7.2 (#5189)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-document-ai-bom](https://togithub.com/googleapis/java-document-ai) | `2.7.1` -> `2.7.2` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai-bom/2.7.2/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai-bom/2.7.2/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai-bom/2.7.2/compatibility-slim/2.7.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-document-ai-bom/2.7.2/confidence-slim/2.7.1)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-document-ai</summary>

### [`v2.7.2`](https://togithub.com/googleapis/java-document-ai/blob/HEAD/CHANGELOG.md#&#8203;272-httpsgithubcomgoogleapisjava-document-aicomparev271v272-2022-09-20)

[Compare Source](https://togithub.com/googleapis/java-document-ai/compare/v2.7.1...v2.7.2)

##### Dependencies

-   Update dependency com.google.api.grpc:grpc-google-common-protos to v2.9.3 ([#&#8203;891](https://togithub.com/googleapis/java-document-ai/issues/891)) ([916c7f1](https://togithub.com/googleapis/java-document-ai/commit/916c7f17e98f32a5cdd0e89c747d778a005a16ba))

</details>

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google-cloud-bom/pom.xml

@@ -413,7 +413,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-document-ai-bom</artifactId>
-        <version>2.7.1</version>
+        <version>2.7.2</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>