chore(deps): update dependency io.cloudevents:cloudevents-api to v4 (#283)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [io.cloudevents:cloudevents-api](https://cloudevents.github.io/sdk-java/) ([source](https://redirect.github.com/cloudevents/sdk-java)) | `3.0.0` -> `4.0.1` | [![age](https://developer.mend.io/api/mc/badges/age/maven/io.cloudevents:cloudevents-api/4.0.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/io.cloudevents:cloudevents-api/4.0.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/io.cloudevents:cloudevents-api/3.0.0/4.0.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/io.cloudevents:cloudevents-api/3.0.0/4.0.1?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

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> [!WARNING]
> Some dependencies could not be looked up. Check the warning logs for more information.

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### Release Notes

<details>
<summary>cloudevents/sdk-java (io.cloudevents:cloudevents-api)</summary>

### [`v4.0.1`](https://redirect.github.com/cloudevents/sdk-java/releases/tag/v4.0.1)

[Compare Source](https://redirect.github.com/cloudevents/sdk-java/compare/v4.0.0...v4.0.1)

#### What's Changed

-   \[4.0] Make CloudEventValidatorProvider thread safe ([#&#8203;650](https://redirect.github.com/cloudevents/sdk-java/issues/650)) by [@&#8203;pierDipi](https://redirect.github.com/pierDipi) in [https://togithub.com/cloudevents/sdk-java/pull/651](https://redirect.github.com/cloudevents/sdk-java/pull/651)

**Full Changelog**: https://togithub.com/cloudevents/sdk-java/compare/v4.0.0...v4.0.1

### [`v4.0.0`](https://redirect.github.com/cloudevents/sdk-java/releases/tag/v4.0.0)

[Compare Source](https://redirect.github.com/cloudevents/sdk-java/compare/3.0.0...v4.0.0)

#### What's Changed

-   Support CloudEvents SQL v1 (CE SQL) by [@&#8203;Cali0707](https://redirect.github.com/Cali0707) in [https://togithub.com/cloudevents/sdk-java/pull/641](https://redirect.github.com/cloudevents/sdk-java/pull/641)
-   doc: update & uniformize package version by [@&#8203;BoboTiG](https://redirect.github.com/BoboTiG) in [https://togithub.com/cloudevents/sdk-java/pull/640](https://redirect.github.com/cloudevents/sdk-java/pull/640)
-   fix: invalid automatic module name by [@&#8203;Jummartinezro](https://redirect.github.com/Jummartinezro) in [https://togithub.com/cloudevents/sdk-java/pull/639](https://redirect.github.com/cloudevents/sdk-java/pull/639)
-   Bump io.vertx:vertx-core from 4.3.7 to 4.5.3 in /http/vertx by [@&#8203;dependabot](https://redirect.github.com/dependabot) in [https://togithub.com/cloudevents/sdk-java/pull/622](https://redirect.github.com/cloudevents/sdk-java/pull/622)
-   Bump nokogiri from 1.16.3 to 1.16.5 in /docs by [@&#8203;dependabot](https://redirect.github.com/dependabot) in [https://togithub.com/cloudevents/sdk-java/pull/632](https://redirect.github.com/cloudevents/sdk-java/pull/632)
-   Bump org.xmlunit:xmlunit-core from 2.9.0 to 2.10.0 in /formats/xml by [@&#8203;dependabot](https://redirect.github.com/dependabot) in [https://togithub.com/cloudevents/sdk-java/pull/631](https://redirect.github.com/cloudevents/sdk-java/pull/631)

#### New Contributors

-   [@&#8203;BoboTiG](https://redirect.github.com/BoboTiG) made their first contribution in [https://togithub.com/cloudevents/sdk-java/pull/640](https://redirect.github.com/cloudevents/sdk-java/pull/640)
-   [@&#8203;Jummartinezro](https://redirect.github.com/Jummartinezro) made their first contribution in [https://togithub.com/cloudevents/sdk-java/pull/639](https://redirect.github.com/cloudevents/sdk-java/pull/639)

**Full Changelog**: https://togithub.com/cloudevents/sdk-java/compare/3.0.0...v4.0.0

</details>

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Author: renovate-bot

functions-framework-api/pom.xml

@@ -52,7 +52,7 @@
     <dependency>
       <groupId>io.cloudevents</groupId>
       <artifactId>cloudevents-api</artifactId>
-      <version>3.0.0</version>
+      <version>4.0.1</version>
     </dependency>
   </dependencies>