How to add attributes in xml report from junit test?

I would like to add some attributes in the xml report generated by junit tests to add traceability to my tests

Here's what I would like :

class MyTest{
    @Test
    @AddAttribute("key","value")
    fun myTest()
    {

    }
}

And then to have this pair ("key","value") added to my report.xml like :

<?xml version='1.0' encoding='UTF-8' ?>
<testsuite name="MyTests" tests="1" failures="0" errors="0" skipped="0" time="20.846" timestamp="2020-07-07T15:07:57" hostname="localhost">
  <properties>
    <property name="project" value="app" />
  </properties>
  <testcase name="MyTest" classname="MyTest" time="12.912" key="value" />
</testsuite>

Any ideas ?