Search before asking

• I had searched in the issues and found no similar feature requirement.

Description

• As we have migrated all unit tests from jUnit 4 -> jUnit5 and removed related jUnit 4 library imports, we need to add a Spotless step to check and block such imports like org.junit.xxx in the future. Contributors are supposed to import org.junit.jupiter.xxx instead.
• This issue is part of [Migration][Test] jUnit4 -> jUnit5 UT cases migration #12301.

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct