test(deps): update dependency org.mockito:mockito-core to v4.8.0 (#2000)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.mockito:mockito-core](https://github.com/mockito/mockito) | `4.7.0` -> `4.8.0` | [![age](https://badges.renovateapi.com/packages/maven/org.mockito:mockito-core/4.8.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/org.mockito:mockito-core/4.8.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/org.mockito:mockito-core/4.8.0/compatibility-slim/4.7.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/org.mockito:mockito-core/4.8.0/confidence-slim/4.7.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>mockito/mockito</summary>

### [`v4.8.0`](https://github.com/mockito/mockito/releases/tag/v4.8.0)

[Compare Source](https://github.com/mockito/mockito/compare/v4.7.0...v4.8.0)

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

##### 4.8.0

-   2022-09-07 - [10 commit(s)](https://github.com/mockito/mockito/compare/v4.7.0...v4.8.0) by Alex, James Baker, Johannes Spangenberg, Kurt Alfred Kluever, Rafael Winterhalter, Thibault Helsmoortel, dependabot\[bot]
-   GitHub Workflows security hardening [(#&#8203;2744)](https://github.com/mockito/mockito/pull/2744)
-   Assign GlobalConfiguration initializer to unused variable [(#&#8203;2742)](https://github.com/mockito/mockito/pull/2742)
-   Bump com.diffplug.spotless from 6.9.1 to 6.10.0 [(#&#8203;2738)](https://github.com/mockito/mockito/pull/2738)
-   Drop varargs collector before invoking a user method. [(#&#8203;2736)](https://github.com/mockito/mockito/pull/2736)
-   Bump versions.bytebuddy from 1.12.13 to 1.12.14 [(#&#8203;2734)](https://github.com/mockito/mockito/pull/2734)
-   Remove useless thrown exception from constructor [(#&#8203;2732)](https://github.com/mockito/mockito/pull/2732)
-   TypeSafeMatching no longer iterates over class methods inefficiently [(#&#8203;2729)](https://github.com/mockito/mockito/pull/2729)
-   Fixes [#&#8203;2720](https://github.com/mockito/mockito/issues/2720): Use StackWalker on Java 9+ to create Locations [(#&#8203;2723)](https://github.com/mockito/mockito/pull/2723)
-   LocationImpl adds performance overheads due to instantiating a stack trace [(#&#8203;2720)](https://github.com/mockito/mockito/issues/2720)
-   Fixes [#&#8203;2626](https://github.com/mockito/mockito/issues/2626) : Introduce MockSettings.mockMaker [(#&#8203;2701)](https://github.com/mockito/mockito/pull/2701)
-   Introduce option to disable inline-mock-maker for a specific instance [(#&#8203;2626)](https://github.com/mockito/mockito/issues/2626)

</details>

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Author: renovate-bot

google-cloud-spanner/pom.xml

@@ -353,7 +353,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>4.7.0</version>
+      <version>4.8.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>