deps: update dependency com.google.cloud:google-cloud-automl-bom to v2.3.0 (#4648)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-automl-bom](https://togithub.com/googleapis/java-automl) | `2.2.4` -> `2.3.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-automl-bom/2.3.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-automl-bom/2.3.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-automl-bom/2.3.0/compatibility-slim/2.2.4)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-automl-bom/2.3.0/confidence-slim/2.2.4)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-automl</summary>

### [`v2.3.0`](https://togithub.com/googleapis/java-automl/blob/HEAD/CHANGELOG.md#&#8203;230-httpsgithubcomgoogleapisjava-automlcomparev224v230-2022-06-30)

[Compare Source](https://togithub.com/googleapis/java-automl/compare/v2.2.4...v2.3.0)

##### Features

-   Enable REST transport for most of Java and Go clients ([#&#8203;1168](https://togithub.com/googleapis/java-automl/issues/1168)) ([42ffff7](https://togithub.com/googleapis/java-automl/commit/42ffff768e445fc82c64a037fa346cb7d53864ba))

##### Bug Fixes

-   update gapic-generator-java with mock service generation fixes ([#&#8203;1174](https://togithub.com/googleapis/java-automl/issues/1174)) ([aa9f85f](https://togithub.com/googleapis/java-automl/commit/aa9f85f5217cfad2eeaebfa8d43b1e5c209b2c68))

</details>

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Author: renovate-bot

google-cloud-bom/pom.xml

@@ -214,7 +214,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-automl-bom</artifactId>
-        <version>2.2.4</version>
+        <version>2.3.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>