chore(deps): bump org.mockito:mockito-core from 5.19.0 to 5.20.0

Bumps [org.mockito:mockito-core](https://github.com/mockito/mockito) from 5.19.0 to 5.20.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.19.0...v5.20.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-core
  dependency-version: 5.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle.kts

@@ -13,7 +13,7 @@ dependencies {
     testImplementation(platform("org.junit:junit-bom:5.11.4"))
     testImplementation("org.junit.jupiter:junit-jupiter")
     testImplementation("org.assertj:assertj-core:3.27.5")
-    testImplementation("org.mockito:mockito-core:5.19.0")
+    testImplementation("org.mockito:mockito-core:5.20.0")
     testImplementation("com.approvaltests:approvaltests:24.22.0")
 }