fix(deps): Update dependency nl.jqno.equalsverifier:equalsverifier to v3.15.7 (#182)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [nl.jqno.equalsverifier:equalsverifier](https://www.jqno.nl/equalsverifier) ([source](https://togithub.com/jqno/equalsverifier)) | dependencies | patch | `3.15.6` -> `3.15.7` |

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### Release Notes

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

### [`v3.15.7`](https://togithub.com/jqno/equalsverifier/blob/HEAD/CHANGELOG.md#3157---2024-02-23)

##### Fixed

-   StackOverflowError when a class has a field of a sealed type whose only permitted subtype has a reference to the original class. ([Issue 920](https://togithub.com/jqno/equalsverifier/issues/920))

</details>

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Author: cq-bot

Diff for: lib/build.gradle

@@ -54,7 +54,7 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.10.1'
     testImplementation 'org.mockito:mockito-core:5.10.0'
     testImplementation 'org.mockito:mockito-junit-jupiter:5.10.0'
-    testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.15.6'
+    testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.15.7'
     testImplementation 'org.assertj:assertj-core:3.25.2'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.10.1'