[Snyk] Upgrade org.mockito:mockito-core from 3.2.0 to 3.12.4

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to upgrade org.mockito:mockito-core from 3.2.0 to 3.12.4.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

- The recommended version is **33 versions** ahead of your current version. - The recommended version was released **2 years ago**, on 2021-08-25.

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AbsaOSS / spline-spark-agent

[Snyk] Upgrade org.mockito:mockito-core from 3.2.0 to 3.12.4 #654

Snyk has created this PR to upgrade org.mockito:mockito-core from 3.2.0 to 3.12.4.