fix(deps): Update dependency org.mockito:mockito-core to v5.18.0 (#179)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [org.mockito:mockito-core](https://redirect.github.com/mockito/mockito) | dependencies | minor | `5.17.0` -> `5.18.0` |

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### Release Notes

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

### [`v5.18.0`](https://redirect.github.com/mockito/mockito/releases/tag/v5.18.0)

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

##### 5.18.0

-   2025-05-20 - [5 commit(s)](https://redirect.github.com/mockito/mockito/compare/v5.17.0...v5.18.0) by Eugene Platonov, Patrick Doyle, Tim van der Lippe, dependabot\[bot]
-   Make vararg checks Scala friendly (for mockito-scala) [(#&#8203;3651)](https://redirect.github.com/mockito/mockito/pull/3651)
-   For UnfinishedStubbingException, suggest the possibility of another thread [(#&#8203;3636)](https://redirect.github.com/mockito/mockito/pull/3636)
-   UnfinishedStubbingException ought to suggest the possibility of another thread [(#&#8203;3635)](https://redirect.github.com/mockito/mockito/issues/3635)

</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:5.17.0"
+    testImplementation "org.mockito:mockito-core:5.18.0"
 }
 
 protobuf {