deps: update dependency com.google.cloud:google-cloud-workflow-executions-bom to v2.3.0 (#4583)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-workflow-executions-bom](https://togithub.com/googleapis/java-workflow-executions) | `2.2.0` -> `2.3.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-workflow-executions-bom/2.3.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-workflow-executions-bom/2.3.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-workflow-executions-bom/2.3.0/compatibility-slim/2.2.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-workflow-executions-bom/2.3.0/confidence-slim/2.2.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-workflow-executions</summary>

### [`v2.3.0`](https://togithub.com/googleapis/java-workflow-executions/blob/HEAD/CHANGELOG.md#&#8203;230-httpsgithubcomgoogleapisjava-workflow-executionscomparev221v230-2022-07-01)

[Compare Source](https://togithub.com/googleapis/java-workflow-executions/compare/v2.2.1...v2.3.0)

##### Features

-   Enable REST transport for most of Java and Go clients ([#&#8203;311](https://togithub.com/googleapis/java-workflow-executions/issues/311)) ([f42b2d0](https://togithub.com/googleapis/java-workflow-executions/commit/f42b2d0ef1f55cc72e355199a85d981147f829e0))
-   java template no longer require clirr ([#&#8203;1469](https://togithub.com/googleapis/java-workflow-executions/issues/1469)) ([#&#8203;322](https://togithub.com/googleapis/java-workflow-executions/issues/322)) ([d4785f7](https://togithub.com/googleapis/java-workflow-executions/commit/d4785f7c4c7df6971b9e72695f95f8aa3c2e8330))

### [`v2.2.1`](https://togithub.com/googleapis/java-workflow-executions/blob/HEAD/CHANGELOG.md#&#8203;221-httpsgithubcomgoogleapisjava-workflow-executionscomparev220v221-2022-06-27)

[Compare Source](https://togithub.com/googleapis/java-workflow-executions/compare/v2.2.0...v2.2.1)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2.13.0 ([#&#8203;316](https://togithub.com/googleapis/java-workflow-executions/issues/316)) ([97b5bf2](https://togithub.com/googleapis/java-workflow-executions/commit/97b5bf2361bacd4c7e3633b7205d640cd22913d4))

</details>

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Author: renovate-bot

google-cloud-bom/pom.xml

@@ -887,7 +887,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-workflow-executions-bom</artifactId>
-        <version>2.2.0</version>
+        <version>2.3.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>