Bump mockito-core from 3.6.0 to 3.6.28 (#7116)

Bumps [mockito-core](https://github.com/mockito/mockito) from 3.6.0 to 3.6.28.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v3.6.0...v3.6.28)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

build.gradle

@@ -6,7 +6,7 @@ buildscript {
   ext.reactiveStreamsVersion = "1.0.3"
   ext.junitVersion = "4.13.1"
   ext.testNgVersion = "7.3.0"
-  ext.mockitoVersion = "3.6.0"
+  ext.mockitoVersion = "3.6.28"
   ext.jmhLibVersion = "1.21"
   ext.jmhGradleVersion = "0.5.2"
   ext.guavaVersion = "30.0-jre"