fix(deps): Update dependency nl.jqno.equalsverifier:equalsverifier to v3.19.4 (#338)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [nl.jqno.equalsverifier:equalsverifier](https://www.jqno.nl/equalsverifier) ([source](https://redirect.github.com/jqno/equalsverifier)) | dependencies | patch | `3.19.3` -> `3.19.4` |

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### Release Notes

<details>
<summary>jqno/equalsverifier (nl.jqno.equalsverifier:equalsverifier)</summary>

### [`v3.19.4`](https://redirect.github.com/jqno/equalsverifier/blob/HEAD/CHANGELOG.md#3194---2025-04-30)

##### Fixed

-   Suppressing `Warning.IDENTICAL_COPY_FOR_VERSIONED_ENTITY` doesn't work for a versioned entity class when `equals` is defined in an entity parent class.

</details>

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Author: cq-bot

lib/build.gradle

@@ -55,7 +55,7 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.11.4'
     testImplementation 'org.mockito:mockito-core:5.15.2'
     testImplementation 'org.mockito:mockito-junit-jupiter:5.15.2'
-    testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.19.3'
+    testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.19.4'
     testImplementation 'org.assertj:assertj-core:3.27.3'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.11.4'