chore(deps): update mockito monorepo to v5.20.0

Author: renovate[bot]

pom.xml

@@ -41,7 +41,7 @@
         <version.spotless>2.46.1</version.spotless>
         <version.google-java-format>1.22.0</version.google-java-format>
         <version.junit>5.13.4</version.junit>
-        <version.mockito>5.19.0</version.mockito>
+        <version.mockito>5.20.0</version.mockito>
         <version.assertj>3.27.4</version.assertj>
     </properties>