build(deps-dev): bump org.mockito.version from 5.20.0 to 5.21.0 (#766)

Bumps `org.mockito.version` from 5.20.0 to 5.21.0.

Updates `org.mockito:mockito-junit-jupiter` from 5.20.0 to 5.21.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.20.0...v5.21.0)

Updates `org.mockito:mockito-core` from 5.20.0 to 5.21.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.20.0...v5.21.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-junit-jupiter
  dependency-version: 5.21.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
- dependency-name: org.mockito:mockito-core
  dependency-version: 5.21.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -95,7 +95,7 @@
   <com.github.spotbugs.plugin.version>4.9.8.2</com.github.spotbugs.plugin.version>
   <org.junit.jupiter.version>6.0.1</org.junit.jupiter.version>
   <org.hamcrest.version>3.0</org.hamcrest.version>
-  <org.mockito.version>5.20.0</org.mockito.version>
+  <org.mockito.version>5.21.0</org.mockito.version>
   <org.jacoco.maven.plugin.version>0.8.14</org.jacoco.maven.plugin.version>
   <com.diffplug.spotless.maven.plugin.version>2.46.1</com.diffplug.spotless.maven.plugin.version>
   <com.google.googlejavaformat.version>1.17.0</com.google.googlejavaformat.version>