Add checker for JUnit @Test annotation in overridden tests

[ebyhr]

TestNG runs overridden tests regardless of @Test annotation, but JUnit silently ignores such tests. It would be nice to have a checker to enforce the annotation since there're many overridden tests in Trino especially for BaseConnectorTest and BaseConnectorSmokeTest.

public abstract class BaseTest
{
    @Test
    public void test()
    {
        assertEquals(1, 1);
    }
}

public class TestBaseTest
        extends BaseTest
{
    // TestNG runs this test, but JUnit doesn't
    @Override
    public void test()
    {
        assertEquals(1, 2);
    }
}

Tested in #14025
Relates to #9378 and junit-team/junit5#960

[ebyhr]

cc: @wendigo

[ebyhr]

Relates to #18588 (comment)
cc: @findinpath

[hashhar]

Seems https://www.baeldung.com/junit-5-extensions can be used to write something that we need.

[martint]

This is done