fix(deps): Update dependency nl.jqno.equalsverifier:equalsverifier to v3.16 (#205)

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 | minor | `3.15.7` -> `3.16` |

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### Release Notes

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

### [`v3.16`](https://togithub.com/jqno/equalsverifier/blob/HEAD/CHANGELOG.md#316---2024-03-22)

##### Added

-   Support for [Spring Framework](https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/lang/NonNullFields.html)'s `@NonNullFields` annotation and [JSpecify](https://jspecify.dev/)'s `@NullMarked` annotation. ([Issue 936](https://togithub.com/jqno/equalsverifier/issues/936))

##### Changed

-   When `Warning.SURROGATE_OR_BUSINESS_KEY` is suppressed, it is now possible to use `#withOnlyTheseFields`, and the fields may include both `@Id` fields and regular fields. ([Issue 934](https://togithub.com/jqno/equalsverifier/issues/934))
-   Improved the error message for so called 'versioned entities' (where entities with `0` or `null` ids are always unequal), so it's more discoverable what to do in that situation. ([Issue 932](https://togithub.com/jqno/equalsverifier/issues/932))

### [`v3.15.8`](https://togithub.com/jqno/equalsverifier/blob/HEAD/CHANGELOG.md#3158---2024-03-01)

##### Fixed

-   Final entities with [@&#8203;GeneratedValue](https://togithub.com/GeneratedValue) could not be verified. ([Issue 929](https://togithub.com/jqno/equalsverifier/issues/929))

</details>

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Author: cq-bot

Diff for: lib/build.gradle

@@ -55,7 +55,7 @@ dependencies {
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.10.2'
     testImplementation 'org.mockito:mockito-core:5.10.0'
     testImplementation 'org.mockito:mockito-junit-jupiter:5.10.0'
-    testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.15.7'
+    testImplementation 'nl.jqno.equalsverifier:equalsverifier:3.16'
     testImplementation 'org.assertj:assertj-core:3.25.3'
     testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.10.2'