fix(deps): update dependency org.mockito:mockito-core to v5.20.0

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

library/build.gradle

@@ -78,7 +78,7 @@ dependencies {
 
     // dependencies for tests
     testImplementation "junit:junit:$junit_version"
-    testImplementation 'org.mockito:mockito-core:5.19.0'
+    testImplementation 'org.mockito:mockito-core:5.20.0'
     testImplementation 'com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0'
 
     // dependencies for instrumented tests