fix(deps): Update dependency nl.jqno.equalsverifier:equalsverifier to v4.3.1 (#404)

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 | minor | `4.2.5` -> `4.3.1` |

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### Release Notes

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

### [`v4.3.1`](https://redirect.github.com/jqno/equalsverifier/blob/HEAD/CHANGELOG.md#431---2026-01-24)

##### Changed

-   EqualsVerifier now respects [Kotlin's data class contract](https://kotlinlang.org/docs/data-classes.html#properties-declared-in-the-class-body): properties declared in the class body are assumed not to take part in `equals()` and `hashCode()`. ([Issue 1159](https://redirect.github.com/jqno/equalsverifier/issues/1159); thanks [Sogilis Team](https://redirect.github.com/sogilis/)!)

### [`v4.3`](https://redirect.github.com/jqno/equalsverifier/blob/HEAD/CHANGELOG.md#431---2026-01-24)

##### Changed

-   EqualsVerifier now respects [Kotlin's data class contract](https://kotlinlang.org/docs/data-classes.html#properties-declared-in-the-class-body): properties declared in the class body are assumed not to take part in `equals()` and `hashCode()`. ([Issue 1159](https://redirect.github.com/jqno/equalsverifier/issues/1159); thanks [Sogilis Team](https://redirect.github.com/sogilis/)!)

### [`v4.2.6`](https://redirect.github.com/jqno/equalsverifier/blob/HEAD/CHANGELOG.md#426---2025-12-30)

##### Fixed

-   If first permitted and non-abstract subclass of a sealed type has a recursion, EqualsVerifier throws RecursionException instead of trying the second permitted non-abstract subclass. ([Issue 1081](https://redirect.github.com/jqno/equalsverifier/issues/1081))

##### Changed

-   Avoids potential parameter order bug when instantiating records. ([Issue 1160](https://redirect.github.com/jqno/equalsverifier/issues/1160); thanks lycoris106!)
-   More performance improvements.

</details>

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Author: cq-bot

lib/build.gradle

@@ -51,7 +51,7 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter-api:6.0.0'
     testImplementation 'org.mockito:mockito-core:5.20.0'
     testImplementation 'org.mockito:mockito-junit-jupiter:5.20.0'
-    testImplementation 'nl.jqno.equalsverifier:equalsverifier:4.2.5'
+    testImplementation 'nl.jqno.equalsverifier:equalsverifier:4.3.1'
     testImplementation 'org.assertj:assertj-core:3.27.7'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'