fix(deps): Update dependency org.mockito:mockito-core to v5.15.2 (#155)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [org.mockito:mockito-core](https://togithub.com/mockito/mockito) | dependencies | minor | `5.14.2` -> `5.15.2` |

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### Release Notes

<details>
<summary>mockito/mockito (org.mockito:mockito-core)</summary>

### [`v5.15.2`](https://togithub.com/mockito/mockito/releases/tag/v5.15.2)

<sup><sup>*Changelog generated by [Shipkit Changelog Gradle Plugin](https://togithub.com/shipkit/shipkit-changelog)*</sup></sup>

##### 5.15.2

-   2025-01-02 - [2 commit(s)](https://togithub.com/mockito/mockito/compare/v5.15.1...v5.15.2) by Brice Dutheil, dependabot\[bot]
-   Fix javadoc publication [(#&#8203;3561)](https://togithub.com/mockito/mockito/pull/3561)
-   Bump org.assertj:assertj-core from 3.27.0 to 3.27.1 [(#&#8203;3560)](https://togithub.com/mockito/mockito/pull/3560)
-   The release job is failed again [(#&#8203;3542)](https://togithub.com/mockito/mockito/issues/3542)

</details>

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Author: cq-bot

build.gradle

@@ -40,7 +40,7 @@ dependencies {
 
     testImplementation "io.grpc:grpc-testing:${grpcVersion}"
     testImplementation "junit:junit:4.13.2"
-    testImplementation "org.mockito:mockito-core:5.14.2"
+    testImplementation "org.mockito:mockito-core:5.15.2"
 }
 
 protobuf {