deps: update dependency com.google.cloud:google-cloud-speech-bom to v2.5.1 (#4685)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-speech-bom](https://togithub.com/googleapis/java-speech) | `2.5.0` -> `2.5.1` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-speech-bom/2.5.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-speech-bom/2.5.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-speech-bom/2.5.1/compatibility-slim/2.5.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-speech-bom/2.5.1/confidence-slim/2.5.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v2.5.1`](https://togithub.com/googleapis/java-speech/blob/HEAD/CHANGELOG.md#&#8203;251-httpsgithubcomgoogleapisjava-speechcomparev250v251-2022-07-01)

[Compare Source](https://togithub.com/googleapis/java-speech/compare/v2.5.0...v2.5.1)

##### Dependencies

-   update dependency com.google.cloud:google-cloud-storage to v2.9.0 ([#&#8203;910](https://togithub.com/googleapis/java-speech/issues/910)) ([613369d](https://togithub.com/googleapis/java-speech/commit/613369db7d203904e7be9d5f31ef119aec21701a))

</details>

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Author: renovate-bot

google-cloud-bom/pom.xml

@@ -777,7 +777,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-speech-bom</artifactId>
-        <version>2.5.0</version>
+        <version>2.5.1</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>