Bump mockito-core from 3.5.13 to 3.5.15 in /modules/junit-jupiter (#3387)

Bumps [mockito-core](https://github.com/mockito/mockito) from 3.5.13 to 3.5.15.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.5.13...v3.5.15)

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

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

Author: dependabot[bot]

modules/junit-jupiter/build.gradle

@@ -9,7 +9,7 @@ dependencies {
     testCompile 'com.zaxxer:HikariCP:3.4.5'
     testCompile 'redis.clients:jedis:3.3.0'
     testCompile 'org.apache.httpcomponents:httpclient:4.5.13'
-    testCompile ('org.mockito:mockito-core:3.5.13') {
+    testCompile ('org.mockito:mockito-core:3.5.15') {
         exclude(module: 'hamcrest-core')
     }
     testCompile 'org.assertj:assertj-core:3.18.0'